Commit | Line | Data |
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1da177e4 LT |
1 | /* pcnet32.c: An AMD PCnet32 ethernet driver for linux. */ |
2 | /* | |
3 | * Copyright 1996-1999 Thomas Bogendoerfer | |
4 | * | |
5 | * Derived from the lance driver written 1993,1994,1995 by Donald Becker. | |
6 | * | |
7 | * Copyright 1993 United States Government as represented by the | |
8 | * Director, National Security Agency. | |
9 | * | |
10 | * This software may be used and distributed according to the terms | |
11 | * of the GNU General Public License, incorporated herein by reference. | |
12 | * | |
13 | * This driver is for PCnet32 and PCnetPCI based ethercards | |
14 | */ | |
15 | /************************************************************************** | |
16 | * 23 Oct, 2000. | |
17 | * Fixed a few bugs, related to running the controller in 32bit mode. | |
18 | * | |
19 | * Carsten Langgaard, carstenl@mips.com | |
20 | * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved. | |
21 | * | |
22 | *************************************************************************/ | |
23 | ||
24 | #define DRV_NAME "pcnet32" | |
ac62ef04 DF |
25 | #define DRV_VERSION "1.32" |
26 | #define DRV_RELDATE "18.Mar.2006" | |
1da177e4 LT |
27 | #define PFX DRV_NAME ": " |
28 | ||
4a5e8e29 JG |
29 | static const char *const version = |
30 | DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " tsbogend@alpha.franken.de\n"; | |
1da177e4 LT |
31 | |
32 | #include <linux/module.h> | |
33 | #include <linux/kernel.h> | |
34 | #include <linux/string.h> | |
35 | #include <linux/errno.h> | |
36 | #include <linux/ioport.h> | |
37 | #include <linux/slab.h> | |
38 | #include <linux/interrupt.h> | |
39 | #include <linux/pci.h> | |
40 | #include <linux/delay.h> | |
41 | #include <linux/init.h> | |
42 | #include <linux/ethtool.h> | |
43 | #include <linux/mii.h> | |
44 | #include <linux/crc32.h> | |
45 | #include <linux/netdevice.h> | |
46 | #include <linux/etherdevice.h> | |
47 | #include <linux/skbuff.h> | |
48 | #include <linux/spinlock.h> | |
49 | #include <linux/moduleparam.h> | |
50 | #include <linux/bitops.h> | |
51 | ||
52 | #include <asm/dma.h> | |
53 | #include <asm/io.h> | |
54 | #include <asm/uaccess.h> | |
55 | #include <asm/irq.h> | |
56 | ||
57 | /* | |
58 | * PCI device identifiers for "new style" Linux PCI Device Drivers | |
59 | */ | |
60 | static struct pci_device_id pcnet32_pci_tbl[] = { | |
f2622a2b DF |
61 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE_HOME), }, |
62 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE), }, | |
4a5e8e29 JG |
63 | |
64 | /* | |
65 | * Adapters that were sold with IBM's RS/6000 or pSeries hardware have | |
66 | * the incorrect vendor id. | |
67 | */ | |
f2622a2b DF |
68 | { PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_AMD_LANCE), |
69 | .class = (PCI_CLASS_NETWORK_ETHERNET << 8), .class_mask = 0xffff00, }, | |
4a5e8e29 JG |
70 | |
71 | { } /* terminate list */ | |
1da177e4 LT |
72 | }; |
73 | ||
4a5e8e29 | 74 | MODULE_DEVICE_TABLE(pci, pcnet32_pci_tbl); |
1da177e4 LT |
75 | |
76 | static int cards_found; | |
77 | ||
78 | /* | |
79 | * VLB I/O addresses | |
80 | */ | |
81 | static unsigned int pcnet32_portlist[] __initdata = | |
4a5e8e29 | 82 | { 0x300, 0x320, 0x340, 0x360, 0 }; |
1da177e4 LT |
83 | |
84 | static int pcnet32_debug = 0; | |
4a5e8e29 JG |
85 | static int tx_start = 1; /* Mapping -- 0:20, 1:64, 2:128, 3:~220 (depends on chip vers) */ |
86 | static int pcnet32vlb; /* check for VLB cards ? */ | |
1da177e4 LT |
87 | |
88 | static struct net_device *pcnet32_dev; | |
89 | ||
90 | static int max_interrupt_work = 2; | |
91 | static int rx_copybreak = 200; | |
92 | ||
93 | #define PCNET32_PORT_AUI 0x00 | |
94 | #define PCNET32_PORT_10BT 0x01 | |
95 | #define PCNET32_PORT_GPSI 0x02 | |
96 | #define PCNET32_PORT_MII 0x03 | |
97 | ||
98 | #define PCNET32_PORT_PORTSEL 0x03 | |
99 | #define PCNET32_PORT_ASEL 0x04 | |
100 | #define PCNET32_PORT_100 0x40 | |
101 | #define PCNET32_PORT_FD 0x80 | |
102 | ||
103 | #define PCNET32_DMA_MASK 0xffffffff | |
104 | ||
105 | #define PCNET32_WATCHDOG_TIMEOUT (jiffies + (2 * HZ)) | |
106 | #define PCNET32_BLINK_TIMEOUT (jiffies + (HZ/4)) | |
107 | ||
108 | /* | |
109 | * table to translate option values from tulip | |
110 | * to internal options | |
111 | */ | |
f71e1309 | 112 | static const unsigned char options_mapping[] = { |
4a5e8e29 JG |
113 | PCNET32_PORT_ASEL, /* 0 Auto-select */ |
114 | PCNET32_PORT_AUI, /* 1 BNC/AUI */ | |
115 | PCNET32_PORT_AUI, /* 2 AUI/BNC */ | |
116 | PCNET32_PORT_ASEL, /* 3 not supported */ | |
117 | PCNET32_PORT_10BT | PCNET32_PORT_FD, /* 4 10baseT-FD */ | |
118 | PCNET32_PORT_ASEL, /* 5 not supported */ | |
119 | PCNET32_PORT_ASEL, /* 6 not supported */ | |
120 | PCNET32_PORT_ASEL, /* 7 not supported */ | |
121 | PCNET32_PORT_ASEL, /* 8 not supported */ | |
122 | PCNET32_PORT_MII, /* 9 MII 10baseT */ | |
123 | PCNET32_PORT_MII | PCNET32_PORT_FD, /* 10 MII 10baseT-FD */ | |
124 | PCNET32_PORT_MII, /* 11 MII (autosel) */ | |
125 | PCNET32_PORT_10BT, /* 12 10BaseT */ | |
126 | PCNET32_PORT_MII | PCNET32_PORT_100, /* 13 MII 100BaseTx */ | |
127 | /* 14 MII 100BaseTx-FD */ | |
128 | PCNET32_PORT_MII | PCNET32_PORT_100 | PCNET32_PORT_FD, | |
129 | PCNET32_PORT_ASEL /* 15 not supported */ | |
1da177e4 LT |
130 | }; |
131 | ||
132 | static const char pcnet32_gstrings_test[][ETH_GSTRING_LEN] = { | |
4a5e8e29 | 133 | "Loopback test (offline)" |
1da177e4 | 134 | }; |
4a5e8e29 | 135 | |
1da177e4 LT |
136 | #define PCNET32_TEST_LEN (sizeof(pcnet32_gstrings_test) / ETH_GSTRING_LEN) |
137 | ||
ac62ef04 | 138 | #define PCNET32_NUM_REGS 136 |
1da177e4 | 139 | |
4a5e8e29 | 140 | #define MAX_UNITS 8 /* More are supported, limit only on options */ |
1da177e4 LT |
141 | static int options[MAX_UNITS]; |
142 | static int full_duplex[MAX_UNITS]; | |
143 | static int homepna[MAX_UNITS]; | |
144 | ||
145 | /* | |
146 | * Theory of Operation | |
147 | * | |
148 | * This driver uses the same software structure as the normal lance | |
149 | * driver. So look for a verbose description in lance.c. The differences | |
150 | * to the normal lance driver is the use of the 32bit mode of PCnet32 | |
151 | * and PCnetPCI chips. Because these chips are 32bit chips, there is no | |
152 | * 16MB limitation and we don't need bounce buffers. | |
153 | */ | |
154 | ||
1da177e4 LT |
155 | /* |
156 | * Set the number of Tx and Rx buffers, using Log_2(# buffers). | |
157 | * Reasonable default values are 4 Tx buffers, and 16 Rx buffers. | |
158 | * That translates to 2 (4 == 2^^2) and 4 (16 == 2^^4). | |
159 | */ | |
160 | #ifndef PCNET32_LOG_TX_BUFFERS | |
eabf0415 HWL |
161 | #define PCNET32_LOG_TX_BUFFERS 4 |
162 | #define PCNET32_LOG_RX_BUFFERS 5 | |
163 | #define PCNET32_LOG_MAX_TX_BUFFERS 9 /* 2^9 == 512 */ | |
164 | #define PCNET32_LOG_MAX_RX_BUFFERS 9 | |
1da177e4 LT |
165 | #endif |
166 | ||
167 | #define TX_RING_SIZE (1 << (PCNET32_LOG_TX_BUFFERS)) | |
eabf0415 | 168 | #define TX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_TX_BUFFERS)) |
1da177e4 LT |
169 | |
170 | #define RX_RING_SIZE (1 << (PCNET32_LOG_RX_BUFFERS)) | |
eabf0415 | 171 | #define RX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_RX_BUFFERS)) |
1da177e4 LT |
172 | |
173 | #define PKT_BUF_SZ 1544 | |
174 | ||
175 | /* Offsets from base I/O address. */ | |
176 | #define PCNET32_WIO_RDP 0x10 | |
177 | #define PCNET32_WIO_RAP 0x12 | |
178 | #define PCNET32_WIO_RESET 0x14 | |
179 | #define PCNET32_WIO_BDP 0x16 | |
180 | ||
181 | #define PCNET32_DWIO_RDP 0x10 | |
182 | #define PCNET32_DWIO_RAP 0x14 | |
183 | #define PCNET32_DWIO_RESET 0x18 | |
184 | #define PCNET32_DWIO_BDP 0x1C | |
185 | ||
186 | #define PCNET32_TOTAL_SIZE 0x20 | |
187 | ||
188 | /* The PCNET32 Rx and Tx ring descriptors. */ | |
189 | struct pcnet32_rx_head { | |
0b5bf225 JG |
190 | u32 base; |
191 | s16 buf_length; | |
192 | s16 status; | |
193 | u32 msg_length; | |
194 | u32 reserved; | |
1da177e4 LT |
195 | }; |
196 | ||
197 | struct pcnet32_tx_head { | |
0b5bf225 JG |
198 | u32 base; |
199 | s16 length; | |
200 | s16 status; | |
201 | u32 misc; | |
202 | u32 reserved; | |
1da177e4 LT |
203 | }; |
204 | ||
205 | /* The PCNET32 32-Bit initialization block, described in databook. */ | |
206 | struct pcnet32_init_block { | |
0b5bf225 JG |
207 | u16 mode; |
208 | u16 tlen_rlen; | |
209 | u8 phys_addr[6]; | |
210 | u16 reserved; | |
211 | u32 filter[2]; | |
4a5e8e29 | 212 | /* Receive and transmit ring base, along with extra bits. */ |
0b5bf225 JG |
213 | u32 rx_ring; |
214 | u32 tx_ring; | |
1da177e4 LT |
215 | }; |
216 | ||
217 | /* PCnet32 access functions */ | |
218 | struct pcnet32_access { | |
4a5e8e29 JG |
219 | u16 (*read_csr) (unsigned long, int); |
220 | void (*write_csr) (unsigned long, int, u16); | |
221 | u16 (*read_bcr) (unsigned long, int); | |
222 | void (*write_bcr) (unsigned long, int, u16); | |
223 | u16 (*read_rap) (unsigned long); | |
224 | void (*write_rap) (unsigned long, u16); | |
225 | void (*reset) (unsigned long); | |
1da177e4 LT |
226 | }; |
227 | ||
228 | /* | |
76209926 HWL |
229 | * The first field of pcnet32_private is read by the ethernet device |
230 | * so the structure should be allocated using pci_alloc_consistent(). | |
1da177e4 LT |
231 | */ |
232 | struct pcnet32_private { | |
4a5e8e29 JG |
233 | struct pcnet32_init_block init_block; |
234 | /* The Tx and Rx ring entries must be aligned on 16-byte boundaries in 32bit mode. */ | |
0b5bf225 JG |
235 | struct pcnet32_rx_head *rx_ring; |
236 | struct pcnet32_tx_head *tx_ring; | |
237 | dma_addr_t dma_addr;/* DMA address of beginning of this | |
238 | object, returned by pci_alloc_consistent */ | |
239 | struct pci_dev *pci_dev; | |
240 | const char *name; | |
4a5e8e29 | 241 | /* The saved address of a sent-in-place packet/buffer, for skfree(). */ |
0b5bf225 JG |
242 | struct sk_buff **tx_skbuff; |
243 | struct sk_buff **rx_skbuff; | |
244 | dma_addr_t *tx_dma_addr; | |
245 | dma_addr_t *rx_dma_addr; | |
246 | struct pcnet32_access a; | |
247 | spinlock_t lock; /* Guard lock */ | |
248 | unsigned int cur_rx, cur_tx; /* The next free ring entry */ | |
249 | unsigned int rx_ring_size; /* current rx ring size */ | |
250 | unsigned int tx_ring_size; /* current tx ring size */ | |
251 | unsigned int rx_mod_mask; /* rx ring modular mask */ | |
252 | unsigned int tx_mod_mask; /* tx ring modular mask */ | |
253 | unsigned short rx_len_bits; | |
254 | unsigned short tx_len_bits; | |
255 | dma_addr_t rx_ring_dma_addr; | |
256 | dma_addr_t tx_ring_dma_addr; | |
257 | unsigned int dirty_rx, /* ring entries to be freed. */ | |
258 | dirty_tx; | |
259 | ||
260 | struct net_device_stats stats; | |
261 | char tx_full; | |
262 | char phycount; /* number of phys found */ | |
263 | int options; | |
264 | unsigned int shared_irq:1, /* shared irq possible */ | |
265 | dxsuflo:1, /* disable transmit stop on uflo */ | |
266 | mii:1; /* mii port available */ | |
267 | struct net_device *next; | |
268 | struct mii_if_info mii_if; | |
269 | struct timer_list watchdog_timer; | |
270 | struct timer_list blink_timer; | |
271 | u32 msg_enable; /* debug message level */ | |
4a5e8e29 JG |
272 | |
273 | /* each bit indicates an available PHY */ | |
0b5bf225 | 274 | u32 phymask; |
1da177e4 LT |
275 | }; |
276 | ||
4a5e8e29 JG |
277 | static int pcnet32_probe_pci(struct pci_dev *, const struct pci_device_id *); |
278 | static int pcnet32_probe1(unsigned long, int, struct pci_dev *); | |
279 | static int pcnet32_open(struct net_device *); | |
280 | static int pcnet32_init_ring(struct net_device *); | |
281 | static int pcnet32_start_xmit(struct sk_buff *, struct net_device *); | |
282 | static int pcnet32_rx(struct net_device *); | |
283 | static void pcnet32_tx_timeout(struct net_device *dev); | |
1da177e4 | 284 | static irqreturn_t pcnet32_interrupt(int, void *, struct pt_regs *); |
4a5e8e29 | 285 | static int pcnet32_close(struct net_device *); |
1da177e4 LT |
286 | static struct net_device_stats *pcnet32_get_stats(struct net_device *); |
287 | static void pcnet32_load_multicast(struct net_device *dev); | |
288 | static void pcnet32_set_multicast_list(struct net_device *); | |
4a5e8e29 | 289 | static int pcnet32_ioctl(struct net_device *, struct ifreq *, int); |
1da177e4 LT |
290 | static void pcnet32_watchdog(struct net_device *); |
291 | static int mdio_read(struct net_device *dev, int phy_id, int reg_num); | |
4a5e8e29 JG |
292 | static void mdio_write(struct net_device *dev, int phy_id, int reg_num, |
293 | int val); | |
1da177e4 LT |
294 | static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits); |
295 | static void pcnet32_ethtool_test(struct net_device *dev, | |
4a5e8e29 JG |
296 | struct ethtool_test *eth_test, u64 * data); |
297 | static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1); | |
1da177e4 LT |
298 | static int pcnet32_phys_id(struct net_device *dev, u32 data); |
299 | static void pcnet32_led_blink_callback(struct net_device *dev); | |
300 | static int pcnet32_get_regs_len(struct net_device *dev); | |
301 | static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
4a5e8e29 | 302 | void *ptr); |
1bcd3153 | 303 | static void pcnet32_purge_tx_ring(struct net_device *dev); |
a88c844c | 304 | static int pcnet32_alloc_ring(struct net_device *dev, char *name); |
eabf0415 | 305 | static void pcnet32_free_ring(struct net_device *dev); |
ac62ef04 | 306 | static void pcnet32_check_media(struct net_device *dev, int verbose); |
eabf0415 | 307 | |
4a5e8e29 | 308 | static u16 pcnet32_wio_read_csr(unsigned long addr, int index) |
1da177e4 | 309 | { |
4a5e8e29 JG |
310 | outw(index, addr + PCNET32_WIO_RAP); |
311 | return inw(addr + PCNET32_WIO_RDP); | |
1da177e4 LT |
312 | } |
313 | ||
4a5e8e29 | 314 | static void pcnet32_wio_write_csr(unsigned long addr, int index, u16 val) |
1da177e4 | 315 | { |
4a5e8e29 JG |
316 | outw(index, addr + PCNET32_WIO_RAP); |
317 | outw(val, addr + PCNET32_WIO_RDP); | |
1da177e4 LT |
318 | } |
319 | ||
4a5e8e29 | 320 | static u16 pcnet32_wio_read_bcr(unsigned long addr, int index) |
1da177e4 | 321 | { |
4a5e8e29 JG |
322 | outw(index, addr + PCNET32_WIO_RAP); |
323 | return inw(addr + PCNET32_WIO_BDP); | |
1da177e4 LT |
324 | } |
325 | ||
4a5e8e29 | 326 | static void pcnet32_wio_write_bcr(unsigned long addr, int index, u16 val) |
1da177e4 | 327 | { |
4a5e8e29 JG |
328 | outw(index, addr + PCNET32_WIO_RAP); |
329 | outw(val, addr + PCNET32_WIO_BDP); | |
1da177e4 LT |
330 | } |
331 | ||
4a5e8e29 | 332 | static u16 pcnet32_wio_read_rap(unsigned long addr) |
1da177e4 | 333 | { |
4a5e8e29 | 334 | return inw(addr + PCNET32_WIO_RAP); |
1da177e4 LT |
335 | } |
336 | ||
4a5e8e29 | 337 | static void pcnet32_wio_write_rap(unsigned long addr, u16 val) |
1da177e4 | 338 | { |
4a5e8e29 | 339 | outw(val, addr + PCNET32_WIO_RAP); |
1da177e4 LT |
340 | } |
341 | ||
4a5e8e29 | 342 | static void pcnet32_wio_reset(unsigned long addr) |
1da177e4 | 343 | { |
4a5e8e29 | 344 | inw(addr + PCNET32_WIO_RESET); |
1da177e4 LT |
345 | } |
346 | ||
4a5e8e29 | 347 | static int pcnet32_wio_check(unsigned long addr) |
1da177e4 | 348 | { |
4a5e8e29 JG |
349 | outw(88, addr + PCNET32_WIO_RAP); |
350 | return (inw(addr + PCNET32_WIO_RAP) == 88); | |
1da177e4 LT |
351 | } |
352 | ||
353 | static struct pcnet32_access pcnet32_wio = { | |
4a5e8e29 JG |
354 | .read_csr = pcnet32_wio_read_csr, |
355 | .write_csr = pcnet32_wio_write_csr, | |
356 | .read_bcr = pcnet32_wio_read_bcr, | |
357 | .write_bcr = pcnet32_wio_write_bcr, | |
358 | .read_rap = pcnet32_wio_read_rap, | |
359 | .write_rap = pcnet32_wio_write_rap, | |
360 | .reset = pcnet32_wio_reset | |
1da177e4 LT |
361 | }; |
362 | ||
4a5e8e29 | 363 | static u16 pcnet32_dwio_read_csr(unsigned long addr, int index) |
1da177e4 | 364 | { |
4a5e8e29 JG |
365 | outl(index, addr + PCNET32_DWIO_RAP); |
366 | return (inl(addr + PCNET32_DWIO_RDP) & 0xffff); | |
1da177e4 LT |
367 | } |
368 | ||
4a5e8e29 | 369 | static void pcnet32_dwio_write_csr(unsigned long addr, int index, u16 val) |
1da177e4 | 370 | { |
4a5e8e29 JG |
371 | outl(index, addr + PCNET32_DWIO_RAP); |
372 | outl(val, addr + PCNET32_DWIO_RDP); | |
1da177e4 LT |
373 | } |
374 | ||
4a5e8e29 | 375 | static u16 pcnet32_dwio_read_bcr(unsigned long addr, int index) |
1da177e4 | 376 | { |
4a5e8e29 JG |
377 | outl(index, addr + PCNET32_DWIO_RAP); |
378 | return (inl(addr + PCNET32_DWIO_BDP) & 0xffff); | |
1da177e4 LT |
379 | } |
380 | ||
4a5e8e29 | 381 | static void pcnet32_dwio_write_bcr(unsigned long addr, int index, u16 val) |
1da177e4 | 382 | { |
4a5e8e29 JG |
383 | outl(index, addr + PCNET32_DWIO_RAP); |
384 | outl(val, addr + PCNET32_DWIO_BDP); | |
1da177e4 LT |
385 | } |
386 | ||
4a5e8e29 | 387 | static u16 pcnet32_dwio_read_rap(unsigned long addr) |
1da177e4 | 388 | { |
4a5e8e29 | 389 | return (inl(addr + PCNET32_DWIO_RAP) & 0xffff); |
1da177e4 LT |
390 | } |
391 | ||
4a5e8e29 | 392 | static void pcnet32_dwio_write_rap(unsigned long addr, u16 val) |
1da177e4 | 393 | { |
4a5e8e29 | 394 | outl(val, addr + PCNET32_DWIO_RAP); |
1da177e4 LT |
395 | } |
396 | ||
4a5e8e29 | 397 | static void pcnet32_dwio_reset(unsigned long addr) |
1da177e4 | 398 | { |
4a5e8e29 | 399 | inl(addr + PCNET32_DWIO_RESET); |
1da177e4 LT |
400 | } |
401 | ||
4a5e8e29 | 402 | static int pcnet32_dwio_check(unsigned long addr) |
1da177e4 | 403 | { |
4a5e8e29 JG |
404 | outl(88, addr + PCNET32_DWIO_RAP); |
405 | return ((inl(addr + PCNET32_DWIO_RAP) & 0xffff) == 88); | |
1da177e4 LT |
406 | } |
407 | ||
408 | static struct pcnet32_access pcnet32_dwio = { | |
4a5e8e29 JG |
409 | .read_csr = pcnet32_dwio_read_csr, |
410 | .write_csr = pcnet32_dwio_write_csr, | |
411 | .read_bcr = pcnet32_dwio_read_bcr, | |
412 | .write_bcr = pcnet32_dwio_write_bcr, | |
413 | .read_rap = pcnet32_dwio_read_rap, | |
414 | .write_rap = pcnet32_dwio_write_rap, | |
415 | .reset = pcnet32_dwio_reset | |
1da177e4 LT |
416 | }; |
417 | ||
418 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
419 | static void pcnet32_poll_controller(struct net_device *dev) | |
420 | { | |
4a5e8e29 JG |
421 | disable_irq(dev->irq); |
422 | pcnet32_interrupt(0, dev, NULL); | |
423 | enable_irq(dev->irq); | |
1da177e4 LT |
424 | } |
425 | #endif | |
426 | ||
1da177e4 LT |
427 | static int pcnet32_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
428 | { | |
4a5e8e29 JG |
429 | struct pcnet32_private *lp = dev->priv; |
430 | unsigned long flags; | |
431 | int r = -EOPNOTSUPP; | |
1da177e4 | 432 | |
4a5e8e29 JG |
433 | if (lp->mii) { |
434 | spin_lock_irqsave(&lp->lock, flags); | |
435 | mii_ethtool_gset(&lp->mii_if, cmd); | |
436 | spin_unlock_irqrestore(&lp->lock, flags); | |
437 | r = 0; | |
438 | } | |
439 | return r; | |
1da177e4 LT |
440 | } |
441 | ||
442 | static int pcnet32_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
443 | { | |
4a5e8e29 JG |
444 | struct pcnet32_private *lp = dev->priv; |
445 | unsigned long flags; | |
446 | int r = -EOPNOTSUPP; | |
1da177e4 | 447 | |
4a5e8e29 JG |
448 | if (lp->mii) { |
449 | spin_lock_irqsave(&lp->lock, flags); | |
450 | r = mii_ethtool_sset(&lp->mii_if, cmd); | |
451 | spin_unlock_irqrestore(&lp->lock, flags); | |
452 | } | |
453 | return r; | |
1da177e4 LT |
454 | } |
455 | ||
4a5e8e29 JG |
456 | static void pcnet32_get_drvinfo(struct net_device *dev, |
457 | struct ethtool_drvinfo *info) | |
1da177e4 | 458 | { |
4a5e8e29 JG |
459 | struct pcnet32_private *lp = dev->priv; |
460 | ||
461 | strcpy(info->driver, DRV_NAME); | |
462 | strcpy(info->version, DRV_VERSION); | |
463 | if (lp->pci_dev) | |
464 | strcpy(info->bus_info, pci_name(lp->pci_dev)); | |
465 | else | |
466 | sprintf(info->bus_info, "VLB 0x%lx", dev->base_addr); | |
1da177e4 LT |
467 | } |
468 | ||
469 | static u32 pcnet32_get_link(struct net_device *dev) | |
470 | { | |
4a5e8e29 JG |
471 | struct pcnet32_private *lp = dev->priv; |
472 | unsigned long flags; | |
473 | int r; | |
1da177e4 | 474 | |
4a5e8e29 JG |
475 | spin_lock_irqsave(&lp->lock, flags); |
476 | if (lp->mii) { | |
477 | r = mii_link_ok(&lp->mii_if); | |
478 | } else { | |
479 | ulong ioaddr = dev->base_addr; /* card base I/O address */ | |
480 | r = (lp->a.read_bcr(ioaddr, 4) != 0xc0); | |
481 | } | |
482 | spin_unlock_irqrestore(&lp->lock, flags); | |
483 | ||
484 | return r; | |
1da177e4 LT |
485 | } |
486 | ||
487 | static u32 pcnet32_get_msglevel(struct net_device *dev) | |
488 | { | |
4a5e8e29 JG |
489 | struct pcnet32_private *lp = dev->priv; |
490 | return lp->msg_enable; | |
1da177e4 LT |
491 | } |
492 | ||
493 | static void pcnet32_set_msglevel(struct net_device *dev, u32 value) | |
494 | { | |
4a5e8e29 JG |
495 | struct pcnet32_private *lp = dev->priv; |
496 | lp->msg_enable = value; | |
1da177e4 LT |
497 | } |
498 | ||
499 | static int pcnet32_nway_reset(struct net_device *dev) | |
500 | { | |
4a5e8e29 JG |
501 | struct pcnet32_private *lp = dev->priv; |
502 | unsigned long flags; | |
503 | int r = -EOPNOTSUPP; | |
1da177e4 | 504 | |
4a5e8e29 JG |
505 | if (lp->mii) { |
506 | spin_lock_irqsave(&lp->lock, flags); | |
507 | r = mii_nway_restart(&lp->mii_if); | |
508 | spin_unlock_irqrestore(&lp->lock, flags); | |
509 | } | |
510 | return r; | |
1da177e4 LT |
511 | } |
512 | ||
4a5e8e29 JG |
513 | static void pcnet32_get_ringparam(struct net_device *dev, |
514 | struct ethtool_ringparam *ering) | |
1da177e4 | 515 | { |
4a5e8e29 | 516 | struct pcnet32_private *lp = dev->priv; |
1da177e4 | 517 | |
4a5e8e29 JG |
518 | ering->tx_max_pending = TX_MAX_RING_SIZE - 1; |
519 | ering->tx_pending = lp->tx_ring_size - 1; | |
520 | ering->rx_max_pending = RX_MAX_RING_SIZE - 1; | |
521 | ering->rx_pending = lp->rx_ring_size - 1; | |
eabf0415 HWL |
522 | } |
523 | ||
4a5e8e29 JG |
524 | static int pcnet32_set_ringparam(struct net_device *dev, |
525 | struct ethtool_ringparam *ering) | |
eabf0415 | 526 | { |
4a5e8e29 JG |
527 | struct pcnet32_private *lp = dev->priv; |
528 | unsigned long flags; | |
529 | int i; | |
530 | ||
531 | if (ering->rx_mini_pending || ering->rx_jumbo_pending) | |
532 | return -EINVAL; | |
533 | ||
534 | if (netif_running(dev)) | |
535 | pcnet32_close(dev); | |
536 | ||
537 | spin_lock_irqsave(&lp->lock, flags); | |
eabf0415 | 538 | pcnet32_free_ring(dev); |
4a5e8e29 JG |
539 | lp->tx_ring_size = |
540 | min(ering->tx_pending, (unsigned int)TX_MAX_RING_SIZE); | |
541 | lp->rx_ring_size = | |
542 | min(ering->rx_pending, (unsigned int)RX_MAX_RING_SIZE); | |
543 | ||
544 | /* set the minimum ring size to 4, to allow the loopback test to work | |
545 | * unchanged. | |
546 | */ | |
547 | for (i = 2; i <= PCNET32_LOG_MAX_TX_BUFFERS; i++) { | |
548 | if (lp->tx_ring_size <= (1 << i)) | |
549 | break; | |
550 | } | |
551 | lp->tx_ring_size = (1 << i); | |
552 | lp->tx_mod_mask = lp->tx_ring_size - 1; | |
553 | lp->tx_len_bits = (i << 12); | |
eabf0415 | 554 | |
4a5e8e29 JG |
555 | for (i = 2; i <= PCNET32_LOG_MAX_RX_BUFFERS; i++) { |
556 | if (lp->rx_ring_size <= (1 << i)) | |
557 | break; | |
558 | } | |
559 | lp->rx_ring_size = (1 << i); | |
560 | lp->rx_mod_mask = lp->rx_ring_size - 1; | |
561 | lp->rx_len_bits = (i << 4); | |
562 | ||
563 | if (pcnet32_alloc_ring(dev, dev->name)) { | |
564 | pcnet32_free_ring(dev); | |
565 | spin_unlock_irqrestore(&lp->lock, flags); | |
566 | return -ENOMEM; | |
567 | } | |
eabf0415 | 568 | |
4a5e8e29 | 569 | spin_unlock_irqrestore(&lp->lock, flags); |
eabf0415 | 570 | |
4a5e8e29 JG |
571 | if (pcnet32_debug & NETIF_MSG_DRV) |
572 | printk(KERN_INFO PFX | |
573 | "%s: Ring Param Settings: RX: %d, TX: %d\n", dev->name, | |
574 | lp->rx_ring_size, lp->tx_ring_size); | |
eabf0415 | 575 | |
4a5e8e29 JG |
576 | if (netif_running(dev)) |
577 | pcnet32_open(dev); | |
578 | ||
579 | return 0; | |
1da177e4 LT |
580 | } |
581 | ||
4a5e8e29 JG |
582 | static void pcnet32_get_strings(struct net_device *dev, u32 stringset, |
583 | u8 * data) | |
1da177e4 | 584 | { |
4a5e8e29 | 585 | memcpy(data, pcnet32_gstrings_test, sizeof(pcnet32_gstrings_test)); |
1da177e4 LT |
586 | } |
587 | ||
588 | static int pcnet32_self_test_count(struct net_device *dev) | |
589 | { | |
4a5e8e29 | 590 | return PCNET32_TEST_LEN; |
1da177e4 LT |
591 | } |
592 | ||
593 | static void pcnet32_ethtool_test(struct net_device *dev, | |
4a5e8e29 | 594 | struct ethtool_test *test, u64 * data) |
1da177e4 | 595 | { |
4a5e8e29 JG |
596 | struct pcnet32_private *lp = dev->priv; |
597 | int rc; | |
598 | ||
599 | if (test->flags == ETH_TEST_FL_OFFLINE) { | |
600 | rc = pcnet32_loopback_test(dev, data); | |
601 | if (rc) { | |
602 | if (netif_msg_hw(lp)) | |
603 | printk(KERN_DEBUG "%s: Loopback test failed.\n", | |
604 | dev->name); | |
605 | test->flags |= ETH_TEST_FL_FAILED; | |
606 | } else if (netif_msg_hw(lp)) | |
607 | printk(KERN_DEBUG "%s: Loopback test passed.\n", | |
608 | dev->name); | |
1da177e4 | 609 | } else if (netif_msg_hw(lp)) |
4a5e8e29 JG |
610 | printk(KERN_DEBUG |
611 | "%s: No tests to run (specify 'Offline' on ethtool).", | |
612 | dev->name); | |
613 | } /* end pcnet32_ethtool_test */ | |
1da177e4 | 614 | |
4a5e8e29 | 615 | static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) |
1da177e4 | 616 | { |
4a5e8e29 JG |
617 | struct pcnet32_private *lp = dev->priv; |
618 | struct pcnet32_access *a = &lp->a; /* access to registers */ | |
619 | ulong ioaddr = dev->base_addr; /* card base I/O address */ | |
620 | struct sk_buff *skb; /* sk buff */ | |
621 | int x, i; /* counters */ | |
622 | int numbuffs = 4; /* number of TX/RX buffers and descs */ | |
623 | u16 status = 0x8300; /* TX ring status */ | |
624 | u16 teststatus; /* test of ring status */ | |
625 | int rc; /* return code */ | |
626 | int size; /* size of packets */ | |
627 | unsigned char *packet; /* source packet data */ | |
628 | static const int data_len = 60; /* length of source packets */ | |
629 | unsigned long flags; | |
630 | unsigned long ticks; | |
631 | ||
632 | *data1 = 1; /* status of test, default to fail */ | |
633 | rc = 1; /* default to fail */ | |
634 | ||
635 | if (netif_running(dev)) | |
636 | pcnet32_close(dev); | |
637 | ||
638 | spin_lock_irqsave(&lp->lock, flags); | |
639 | ||
640 | /* Reset the PCNET32 */ | |
641 | lp->a.reset(ioaddr); | |
642 | ||
643 | /* switch pcnet32 to 32bit mode */ | |
644 | lp->a.write_bcr(ioaddr, 20, 2); | |
645 | ||
646 | lp->init_block.mode = | |
647 | le16_to_cpu((lp->options & PCNET32_PORT_PORTSEL) << 7); | |
648 | lp->init_block.filter[0] = 0; | |
649 | lp->init_block.filter[1] = 0; | |
650 | ||
651 | /* purge & init rings but don't actually restart */ | |
652 | pcnet32_restart(dev, 0x0000); | |
653 | ||
654 | lp->a.write_csr(ioaddr, 0, 0x0004); /* Set STOP bit */ | |
655 | ||
656 | /* Initialize Transmit buffers. */ | |
657 | size = data_len + 15; | |
658 | for (x = 0; x < numbuffs; x++) { | |
659 | if (!(skb = dev_alloc_skb(size))) { | |
660 | if (netif_msg_hw(lp)) | |
661 | printk(KERN_DEBUG | |
662 | "%s: Cannot allocate skb at line: %d!\n", | |
663 | dev->name, __LINE__); | |
664 | goto clean_up; | |
665 | } else { | |
666 | packet = skb->data; | |
667 | skb_put(skb, size); /* create space for data */ | |
668 | lp->tx_skbuff[x] = skb; | |
669 | lp->tx_ring[x].length = le16_to_cpu(-skb->len); | |
670 | lp->tx_ring[x].misc = 0; | |
671 | ||
672 | /* put DA and SA into the skb */ | |
673 | for (i = 0; i < 6; i++) | |
674 | *packet++ = dev->dev_addr[i]; | |
675 | for (i = 0; i < 6; i++) | |
676 | *packet++ = dev->dev_addr[i]; | |
677 | /* type */ | |
678 | *packet++ = 0x08; | |
679 | *packet++ = 0x06; | |
680 | /* packet number */ | |
681 | *packet++ = x; | |
682 | /* fill packet with data */ | |
683 | for (i = 0; i < data_len; i++) | |
684 | *packet++ = i; | |
685 | ||
686 | lp->tx_dma_addr[x] = | |
687 | pci_map_single(lp->pci_dev, skb->data, skb->len, | |
688 | PCI_DMA_TODEVICE); | |
689 | lp->tx_ring[x].base = | |
690 | (u32) le32_to_cpu(lp->tx_dma_addr[x]); | |
691 | wmb(); /* Make sure owner changes after all others are visible */ | |
692 | lp->tx_ring[x].status = le16_to_cpu(status); | |
693 | } | |
1da177e4 | 694 | } |
1da177e4 | 695 | |
4a5e8e29 JG |
696 | x = a->read_bcr(ioaddr, 32); /* set internal loopback in BSR32 */ |
697 | x = x | 0x0002; | |
698 | a->write_bcr(ioaddr, 32, x); | |
699 | ||
700 | lp->a.write_csr(ioaddr, 15, 0x0044); /* set int loopback in CSR15 */ | |
701 | ||
702 | teststatus = le16_to_cpu(0x8000); | |
703 | lp->a.write_csr(ioaddr, 0, 0x0002); /* Set STRT bit */ | |
704 | ||
705 | /* Check status of descriptors */ | |
706 | for (x = 0; x < numbuffs; x++) { | |
707 | ticks = 0; | |
708 | rmb(); | |
709 | while ((lp->rx_ring[x].status & teststatus) && (ticks < 200)) { | |
710 | spin_unlock_irqrestore(&lp->lock, flags); | |
711 | mdelay(1); | |
712 | spin_lock_irqsave(&lp->lock, flags); | |
713 | rmb(); | |
714 | ticks++; | |
715 | } | |
716 | if (ticks == 200) { | |
717 | if (netif_msg_hw(lp)) | |
718 | printk("%s: Desc %d failed to reset!\n", | |
719 | dev->name, x); | |
720 | break; | |
721 | } | |
722 | } | |
723 | ||
724 | lp->a.write_csr(ioaddr, 0, 0x0004); /* Set STOP bit */ | |
725 | wmb(); | |
726 | if (netif_msg_hw(lp) && netif_msg_pktdata(lp)) { | |
727 | printk(KERN_DEBUG "%s: RX loopback packets:\n", dev->name); | |
728 | ||
729 | for (x = 0; x < numbuffs; x++) { | |
730 | printk(KERN_DEBUG "%s: Packet %d:\n", dev->name, x); | |
731 | skb = lp->rx_skbuff[x]; | |
732 | for (i = 0; i < size; i++) { | |
733 | printk("%02x ", *(skb->data + i)); | |
734 | } | |
735 | printk("\n"); | |
736 | } | |
737 | } | |
1da177e4 | 738 | |
4a5e8e29 JG |
739 | x = 0; |
740 | rc = 0; | |
741 | while (x < numbuffs && !rc) { | |
742 | skb = lp->rx_skbuff[x]; | |
743 | packet = lp->tx_skbuff[x]->data; | |
744 | for (i = 0; i < size; i++) { | |
745 | if (*(skb->data + i) != packet[i]) { | |
746 | if (netif_msg_hw(lp)) | |
747 | printk(KERN_DEBUG | |
748 | "%s: Error in compare! %2x - %02x %02x\n", | |
749 | dev->name, i, *(skb->data + i), | |
750 | packet[i]); | |
751 | rc = 1; | |
752 | break; | |
753 | } | |
754 | } | |
755 | x++; | |
756 | } | |
757 | if (!rc) { | |
758 | *data1 = 0; | |
759 | } | |
1da177e4 | 760 | |
4a5e8e29 JG |
761 | clean_up: |
762 | pcnet32_purge_tx_ring(dev); | |
763 | x = a->read_csr(ioaddr, 15) & 0xFFFF; | |
764 | a->write_csr(ioaddr, 15, (x & ~0x0044)); /* reset bits 6 and 2 */ | |
1da177e4 | 765 | |
4a5e8e29 JG |
766 | x = a->read_bcr(ioaddr, 32); /* reset internal loopback */ |
767 | x = x & ~0x0002; | |
768 | a->write_bcr(ioaddr, 32, x); | |
1da177e4 | 769 | |
4a5e8e29 JG |
770 | spin_unlock_irqrestore(&lp->lock, flags); |
771 | ||
772 | if (netif_running(dev)) { | |
773 | pcnet32_open(dev); | |
774 | } else { | |
775 | lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ | |
776 | } | |
777 | ||
778 | return (rc); | |
779 | } /* end pcnet32_loopback_test */ | |
1da177e4 LT |
780 | |
781 | static void pcnet32_led_blink_callback(struct net_device *dev) | |
782 | { | |
4a5e8e29 JG |
783 | struct pcnet32_private *lp = dev->priv; |
784 | struct pcnet32_access *a = &lp->a; | |
785 | ulong ioaddr = dev->base_addr; | |
786 | unsigned long flags; | |
787 | int i; | |
788 | ||
789 | spin_lock_irqsave(&lp->lock, flags); | |
790 | for (i = 4; i < 8; i++) { | |
791 | a->write_bcr(ioaddr, i, a->read_bcr(ioaddr, i) ^ 0x4000); | |
792 | } | |
793 | spin_unlock_irqrestore(&lp->lock, flags); | |
794 | ||
795 | mod_timer(&lp->blink_timer, PCNET32_BLINK_TIMEOUT); | |
1da177e4 LT |
796 | } |
797 | ||
798 | static int pcnet32_phys_id(struct net_device *dev, u32 data) | |
799 | { | |
4a5e8e29 JG |
800 | struct pcnet32_private *lp = dev->priv; |
801 | struct pcnet32_access *a = &lp->a; | |
802 | ulong ioaddr = dev->base_addr; | |
803 | unsigned long flags; | |
804 | int i, regs[4]; | |
805 | ||
806 | if (!lp->blink_timer.function) { | |
807 | init_timer(&lp->blink_timer); | |
808 | lp->blink_timer.function = (void *)pcnet32_led_blink_callback; | |
809 | lp->blink_timer.data = (unsigned long)dev; | |
810 | } | |
811 | ||
812 | /* Save the current value of the bcrs */ | |
813 | spin_lock_irqsave(&lp->lock, flags); | |
814 | for (i = 4; i < 8; i++) { | |
815 | regs[i - 4] = a->read_bcr(ioaddr, i); | |
816 | } | |
817 | spin_unlock_irqrestore(&lp->lock, flags); | |
818 | ||
819 | mod_timer(&lp->blink_timer, jiffies); | |
820 | set_current_state(TASK_INTERRUPTIBLE); | |
821 | ||
822 | if ((!data) || (data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ))) | |
823 | data = (u32) (MAX_SCHEDULE_TIMEOUT / HZ); | |
824 | ||
825 | msleep_interruptible(data * 1000); | |
826 | del_timer_sync(&lp->blink_timer); | |
827 | ||
828 | /* Restore the original value of the bcrs */ | |
829 | spin_lock_irqsave(&lp->lock, flags); | |
830 | for (i = 4; i < 8; i++) { | |
831 | a->write_bcr(ioaddr, i, regs[i - 4]); | |
832 | } | |
833 | spin_unlock_irqrestore(&lp->lock, flags); | |
834 | ||
835 | return 0; | |
1da177e4 LT |
836 | } |
837 | ||
ac62ef04 DF |
838 | #define PCNET32_REGS_PER_PHY 32 |
839 | #define PCNET32_MAX_PHYS 32 | |
1da177e4 LT |
840 | static int pcnet32_get_regs_len(struct net_device *dev) |
841 | { | |
4a5e8e29 JG |
842 | struct pcnet32_private *lp = dev->priv; |
843 | int j = lp->phycount * PCNET32_REGS_PER_PHY; | |
ac62ef04 | 844 | |
4a5e8e29 | 845 | return ((PCNET32_NUM_REGS + j) * sizeof(u16)); |
1da177e4 LT |
846 | } |
847 | ||
848 | static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
4a5e8e29 | 849 | void *ptr) |
1da177e4 | 850 | { |
4a5e8e29 JG |
851 | int i, csr0; |
852 | u16 *buff = ptr; | |
853 | struct pcnet32_private *lp = dev->priv; | |
854 | struct pcnet32_access *a = &lp->a; | |
855 | ulong ioaddr = dev->base_addr; | |
856 | int ticks; | |
857 | unsigned long flags; | |
858 | ||
859 | spin_lock_irqsave(&lp->lock, flags); | |
860 | ||
861 | csr0 = a->read_csr(ioaddr, 0); | |
862 | if (!(csr0 & 0x0004)) { /* If not stopped */ | |
863 | /* set SUSPEND (SPND) - CSR5 bit 0 */ | |
864 | a->write_csr(ioaddr, 5, 0x0001); | |
865 | ||
866 | /* poll waiting for bit to be set */ | |
867 | ticks = 0; | |
868 | while (!(a->read_csr(ioaddr, 5) & 0x0001)) { | |
869 | spin_unlock_irqrestore(&lp->lock, flags); | |
870 | mdelay(1); | |
871 | spin_lock_irqsave(&lp->lock, flags); | |
872 | ticks++; | |
873 | if (ticks > 200) { | |
874 | if (netif_msg_hw(lp)) | |
875 | printk(KERN_DEBUG | |
876 | "%s: Error getting into suspend!\n", | |
877 | dev->name); | |
878 | break; | |
879 | } | |
ac62ef04 | 880 | } |
1da177e4 | 881 | } |
1da177e4 | 882 | |
4a5e8e29 JG |
883 | /* read address PROM */ |
884 | for (i = 0; i < 16; i += 2) | |
885 | *buff++ = inw(ioaddr + i); | |
886 | ||
887 | /* read control and status registers */ | |
888 | for (i = 0; i < 90; i++) { | |
889 | *buff++ = a->read_csr(ioaddr, i); | |
890 | } | |
891 | ||
892 | *buff++ = a->read_csr(ioaddr, 112); | |
893 | *buff++ = a->read_csr(ioaddr, 114); | |
1da177e4 | 894 | |
4a5e8e29 JG |
895 | /* read bus configuration registers */ |
896 | for (i = 0; i < 30; i++) { | |
897 | *buff++ = a->read_bcr(ioaddr, i); | |
898 | } | |
899 | *buff++ = 0; /* skip bcr30 so as not to hang 79C976 */ | |
900 | for (i = 31; i < 36; i++) { | |
901 | *buff++ = a->read_bcr(ioaddr, i); | |
902 | } | |
903 | ||
904 | /* read mii phy registers */ | |
905 | if (lp->mii) { | |
906 | int j; | |
907 | for (j = 0; j < PCNET32_MAX_PHYS; j++) { | |
908 | if (lp->phymask & (1 << j)) { | |
909 | for (i = 0; i < PCNET32_REGS_PER_PHY; i++) { | |
910 | lp->a.write_bcr(ioaddr, 33, | |
911 | (j << 5) | i); | |
912 | *buff++ = lp->a.read_bcr(ioaddr, 34); | |
913 | } | |
914 | } | |
915 | } | |
916 | } | |
917 | ||
918 | if (!(csr0 & 0x0004)) { /* If not stopped */ | |
919 | /* clear SUSPEND (SPND) - CSR5 bit 0 */ | |
920 | a->write_csr(ioaddr, 5, 0x0000); | |
921 | } | |
922 | ||
923 | spin_unlock_irqrestore(&lp->lock, flags); | |
1da177e4 LT |
924 | } |
925 | ||
926 | static struct ethtool_ops pcnet32_ethtool_ops = { | |
4a5e8e29 JG |
927 | .get_settings = pcnet32_get_settings, |
928 | .set_settings = pcnet32_set_settings, | |
929 | .get_drvinfo = pcnet32_get_drvinfo, | |
930 | .get_msglevel = pcnet32_get_msglevel, | |
931 | .set_msglevel = pcnet32_set_msglevel, | |
932 | .nway_reset = pcnet32_nway_reset, | |
933 | .get_link = pcnet32_get_link, | |
934 | .get_ringparam = pcnet32_get_ringparam, | |
935 | .set_ringparam = pcnet32_set_ringparam, | |
936 | .get_tx_csum = ethtool_op_get_tx_csum, | |
937 | .get_sg = ethtool_op_get_sg, | |
938 | .get_tso = ethtool_op_get_tso, | |
939 | .get_strings = pcnet32_get_strings, | |
940 | .self_test_count = pcnet32_self_test_count, | |
941 | .self_test = pcnet32_ethtool_test, | |
942 | .phys_id = pcnet32_phys_id, | |
943 | .get_regs_len = pcnet32_get_regs_len, | |
944 | .get_regs = pcnet32_get_regs, | |
945 | .get_perm_addr = ethtool_op_get_perm_addr, | |
1da177e4 LT |
946 | }; |
947 | ||
948 | /* only probes for non-PCI devices, the rest are handled by | |
949 | * pci_register_driver via pcnet32_probe_pci */ | |
950 | ||
dcaf9769 | 951 | static void __devinit pcnet32_probe_vlbus(unsigned int *pcnet32_portlist) |
1da177e4 | 952 | { |
4a5e8e29 JG |
953 | unsigned int *port, ioaddr; |
954 | ||
955 | /* search for PCnet32 VLB cards at known addresses */ | |
956 | for (port = pcnet32_portlist; (ioaddr = *port); port++) { | |
957 | if (request_region | |
958 | (ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_vlbus")) { | |
959 | /* check if there is really a pcnet chip on that ioaddr */ | |
960 | if ((inb(ioaddr + 14) == 0x57) | |
961 | && (inb(ioaddr + 15) == 0x57)) { | |
962 | pcnet32_probe1(ioaddr, 0, NULL); | |
963 | } else { | |
964 | release_region(ioaddr, PCNET32_TOTAL_SIZE); | |
965 | } | |
966 | } | |
967 | } | |
1da177e4 LT |
968 | } |
969 | ||
1da177e4 LT |
970 | static int __devinit |
971 | pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent) | |
972 | { | |
4a5e8e29 JG |
973 | unsigned long ioaddr; |
974 | int err; | |
975 | ||
976 | err = pci_enable_device(pdev); | |
977 | if (err < 0) { | |
978 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
979 | printk(KERN_ERR PFX | |
980 | "failed to enable device -- err=%d\n", err); | |
981 | return err; | |
982 | } | |
983 | pci_set_master(pdev); | |
984 | ||
985 | ioaddr = pci_resource_start(pdev, 0); | |
986 | if (!ioaddr) { | |
987 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
988 | printk(KERN_ERR PFX | |
989 | "card has no PCI IO resources, aborting\n"); | |
990 | return -ENODEV; | |
991 | } | |
1da177e4 | 992 | |
4a5e8e29 JG |
993 | if (!pci_dma_supported(pdev, PCNET32_DMA_MASK)) { |
994 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
995 | printk(KERN_ERR PFX | |
996 | "architecture does not support 32bit PCI busmaster DMA\n"); | |
997 | return -ENODEV; | |
998 | } | |
999 | if (request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci") == | |
1000 | NULL) { | |
1001 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1002 | printk(KERN_ERR PFX | |
1003 | "io address range already allocated\n"); | |
1004 | return -EBUSY; | |
1005 | } | |
1da177e4 | 1006 | |
4a5e8e29 JG |
1007 | err = pcnet32_probe1(ioaddr, 1, pdev); |
1008 | if (err < 0) { | |
1009 | pci_disable_device(pdev); | |
1010 | } | |
1011 | return err; | |
1da177e4 LT |
1012 | } |
1013 | ||
1da177e4 LT |
1014 | /* pcnet32_probe1 |
1015 | * Called from both pcnet32_probe_vlbus and pcnet_probe_pci. | |
1016 | * pdev will be NULL when called from pcnet32_probe_vlbus. | |
1017 | */ | |
1018 | static int __devinit | |
1019 | pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) | |
1020 | { | |
4a5e8e29 JG |
1021 | struct pcnet32_private *lp; |
1022 | dma_addr_t lp_dma_addr; | |
1023 | int i, media; | |
1024 | int fdx, mii, fset, dxsuflo; | |
1025 | int chip_version; | |
1026 | char *chipname; | |
1027 | struct net_device *dev; | |
1028 | struct pcnet32_access *a = NULL; | |
1029 | u8 promaddr[6]; | |
1030 | int ret = -ENODEV; | |
1031 | ||
1032 | /* reset the chip */ | |
1033 | pcnet32_wio_reset(ioaddr); | |
1034 | ||
1035 | /* NOTE: 16-bit check is first, otherwise some older PCnet chips fail */ | |
1036 | if (pcnet32_wio_read_csr(ioaddr, 0) == 4 && pcnet32_wio_check(ioaddr)) { | |
1037 | a = &pcnet32_wio; | |
1038 | } else { | |
1039 | pcnet32_dwio_reset(ioaddr); | |
1040 | if (pcnet32_dwio_read_csr(ioaddr, 0) == 4 | |
1041 | && pcnet32_dwio_check(ioaddr)) { | |
1042 | a = &pcnet32_dwio; | |
1043 | } else | |
1044 | goto err_release_region; | |
1045 | } | |
1046 | ||
1047 | chip_version = | |
1048 | a->read_csr(ioaddr, 88) | (a->read_csr(ioaddr, 89) << 16); | |
1049 | if ((pcnet32_debug & NETIF_MSG_PROBE) && (pcnet32_debug & NETIF_MSG_HW)) | |
1050 | printk(KERN_INFO " PCnet chip version is %#x.\n", | |
1051 | chip_version); | |
1052 | if ((chip_version & 0xfff) != 0x003) { | |
1053 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1054 | printk(KERN_INFO PFX "Unsupported chip version.\n"); | |
1055 | goto err_release_region; | |
1056 | } | |
1057 | ||
1058 | /* initialize variables */ | |
1059 | fdx = mii = fset = dxsuflo = 0; | |
1060 | chip_version = (chip_version >> 12) & 0xffff; | |
1061 | ||
1062 | switch (chip_version) { | |
1063 | case 0x2420: | |
1064 | chipname = "PCnet/PCI 79C970"; /* PCI */ | |
1065 | break; | |
1066 | case 0x2430: | |
1067 | if (shared) | |
1068 | chipname = "PCnet/PCI 79C970"; /* 970 gives the wrong chip id back */ | |
1069 | else | |
1070 | chipname = "PCnet/32 79C965"; /* 486/VL bus */ | |
1071 | break; | |
1072 | case 0x2621: | |
1073 | chipname = "PCnet/PCI II 79C970A"; /* PCI */ | |
1074 | fdx = 1; | |
1075 | break; | |
1076 | case 0x2623: | |
1077 | chipname = "PCnet/FAST 79C971"; /* PCI */ | |
1078 | fdx = 1; | |
1079 | mii = 1; | |
1080 | fset = 1; | |
1081 | break; | |
1082 | case 0x2624: | |
1083 | chipname = "PCnet/FAST+ 79C972"; /* PCI */ | |
1084 | fdx = 1; | |
1085 | mii = 1; | |
1086 | fset = 1; | |
1087 | break; | |
1088 | case 0x2625: | |
1089 | chipname = "PCnet/FAST III 79C973"; /* PCI */ | |
1090 | fdx = 1; | |
1091 | mii = 1; | |
1092 | break; | |
1093 | case 0x2626: | |
1094 | chipname = "PCnet/Home 79C978"; /* PCI */ | |
1095 | fdx = 1; | |
1096 | /* | |
1097 | * This is based on specs published at www.amd.com. This section | |
1098 | * assumes that a card with a 79C978 wants to go into standard | |
1099 | * ethernet mode. The 79C978 can also go into 1Mb HomePNA mode, | |
1100 | * and the module option homepna=1 can select this instead. | |
1101 | */ | |
1102 | media = a->read_bcr(ioaddr, 49); | |
1103 | media &= ~3; /* default to 10Mb ethernet */ | |
1104 | if (cards_found < MAX_UNITS && homepna[cards_found]) | |
1105 | media |= 1; /* switch to home wiring mode */ | |
1106 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1107 | printk(KERN_DEBUG PFX "media set to %sMbit mode.\n", | |
1108 | (media & 1) ? "1" : "10"); | |
1109 | a->write_bcr(ioaddr, 49, media); | |
1110 | break; | |
1111 | case 0x2627: | |
1112 | chipname = "PCnet/FAST III 79C975"; /* PCI */ | |
1113 | fdx = 1; | |
1114 | mii = 1; | |
1115 | break; | |
1116 | case 0x2628: | |
1117 | chipname = "PCnet/PRO 79C976"; | |
1118 | fdx = 1; | |
1119 | mii = 1; | |
1120 | break; | |
1121 | default: | |
1122 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1123 | printk(KERN_INFO PFX | |
1124 | "PCnet version %#x, no PCnet32 chip.\n", | |
1125 | chip_version); | |
1126 | goto err_release_region; | |
1127 | } | |
1128 | ||
1da177e4 | 1129 | /* |
4a5e8e29 JG |
1130 | * On selected chips turn on the BCR18:NOUFLO bit. This stops transmit |
1131 | * starting until the packet is loaded. Strike one for reliability, lose | |
1132 | * one for latency - although on PCI this isnt a big loss. Older chips | |
1133 | * have FIFO's smaller than a packet, so you can't do this. | |
1134 | * Turn on BCR18:BurstRdEn and BCR18:BurstWrEn. | |
1da177e4 | 1135 | */ |
4a5e8e29 JG |
1136 | |
1137 | if (fset) { | |
1138 | a->write_bcr(ioaddr, 18, (a->read_bcr(ioaddr, 18) | 0x0860)); | |
1139 | a->write_csr(ioaddr, 80, | |
1140 | (a->read_csr(ioaddr, 80) & 0x0C00) | 0x0c00); | |
1141 | dxsuflo = 1; | |
1142 | } | |
1143 | ||
1144 | dev = alloc_etherdev(0); | |
1145 | if (!dev) { | |
1146 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1147 | printk(KERN_ERR PFX "Memory allocation failed.\n"); | |
1148 | ret = -ENOMEM; | |
1149 | goto err_release_region; | |
1150 | } | |
1151 | SET_NETDEV_DEV(dev, &pdev->dev); | |
1152 | ||
1da177e4 | 1153 | if (pcnet32_debug & NETIF_MSG_PROBE) |
4a5e8e29 JG |
1154 | printk(KERN_INFO PFX "%s at %#3lx,", chipname, ioaddr); |
1155 | ||
1156 | /* In most chips, after a chip reset, the ethernet address is read from the | |
1157 | * station address PROM at the base address and programmed into the | |
1158 | * "Physical Address Registers" CSR12-14. | |
1159 | * As a precautionary measure, we read the PROM values and complain if | |
bc0e1fc9 LV |
1160 | * they disagree with the CSRs. If they miscompare, and the PROM addr |
1161 | * is valid, then the PROM addr is used. | |
4a5e8e29 JG |
1162 | */ |
1163 | for (i = 0; i < 3; i++) { | |
1164 | unsigned int val; | |
1165 | val = a->read_csr(ioaddr, i + 12) & 0x0ffff; | |
1166 | /* There may be endianness issues here. */ | |
1167 | dev->dev_addr[2 * i] = val & 0x0ff; | |
1168 | dev->dev_addr[2 * i + 1] = (val >> 8) & 0x0ff; | |
1169 | } | |
1170 | ||
1171 | /* read PROM address and compare with CSR address */ | |
1da177e4 | 1172 | for (i = 0; i < 6; i++) |
4a5e8e29 JG |
1173 | promaddr[i] = inb(ioaddr + i); |
1174 | ||
1175 | if (memcmp(promaddr, dev->dev_addr, 6) | |
1176 | || !is_valid_ether_addr(dev->dev_addr)) { | |
1177 | if (is_valid_ether_addr(promaddr)) { | |
1178 | if (pcnet32_debug & NETIF_MSG_PROBE) { | |
1179 | printk(" warning: CSR address invalid,\n"); | |
1180 | printk(KERN_INFO | |
1181 | " using instead PROM address of"); | |
1182 | } | |
1183 | memcpy(dev->dev_addr, promaddr, 6); | |
1184 | } | |
1185 | } | |
1186 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); | |
1187 | ||
1188 | /* if the ethernet address is not valid, force to 00:00:00:00:00:00 */ | |
1189 | if (!is_valid_ether_addr(dev->perm_addr)) | |
1190 | memset(dev->dev_addr, 0, sizeof(dev->dev_addr)); | |
1191 | ||
1192 | if (pcnet32_debug & NETIF_MSG_PROBE) { | |
1193 | for (i = 0; i < 6; i++) | |
1194 | printk(" %2.2x", dev->dev_addr[i]); | |
1195 | ||
1196 | /* Version 0x2623 and 0x2624 */ | |
1197 | if (((chip_version + 1) & 0xfffe) == 0x2624) { | |
1198 | i = a->read_csr(ioaddr, 80) & 0x0C00; /* Check tx_start_pt */ | |
1199 | printk("\n" KERN_INFO " tx_start_pt(0x%04x):", i); | |
1200 | switch (i >> 10) { | |
1201 | case 0: | |
1202 | printk(" 20 bytes,"); | |
1203 | break; | |
1204 | case 1: | |
1205 | printk(" 64 bytes,"); | |
1206 | break; | |
1207 | case 2: | |
1208 | printk(" 128 bytes,"); | |
1209 | break; | |
1210 | case 3: | |
1211 | printk("~220 bytes,"); | |
1212 | break; | |
1213 | } | |
1214 | i = a->read_bcr(ioaddr, 18); /* Check Burst/Bus control */ | |
1215 | printk(" BCR18(%x):", i & 0xffff); | |
1216 | if (i & (1 << 5)) | |
1217 | printk("BurstWrEn "); | |
1218 | if (i & (1 << 6)) | |
1219 | printk("BurstRdEn "); | |
1220 | if (i & (1 << 7)) | |
1221 | printk("DWordIO "); | |
1222 | if (i & (1 << 11)) | |
1223 | printk("NoUFlow "); | |
1224 | i = a->read_bcr(ioaddr, 25); | |
1225 | printk("\n" KERN_INFO " SRAMSIZE=0x%04x,", i << 8); | |
1226 | i = a->read_bcr(ioaddr, 26); | |
1227 | printk(" SRAM_BND=0x%04x,", i << 8); | |
1228 | i = a->read_bcr(ioaddr, 27); | |
1229 | if (i & (1 << 14)) | |
1230 | printk("LowLatRx"); | |
1231 | } | |
1232 | } | |
1233 | ||
1234 | dev->base_addr = ioaddr; | |
1235 | /* pci_alloc_consistent returns page-aligned memory, so we do not have to check the alignment */ | |
1236 | if ((lp = | |
1237 | pci_alloc_consistent(pdev, sizeof(*lp), &lp_dma_addr)) == NULL) { | |
1238 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1239 | printk(KERN_ERR PFX | |
1240 | "Consistent memory allocation failed.\n"); | |
1241 | ret = -ENOMEM; | |
1242 | goto err_free_netdev; | |
1243 | } | |
1244 | ||
1245 | memset(lp, 0, sizeof(*lp)); | |
1246 | lp->dma_addr = lp_dma_addr; | |
1247 | lp->pci_dev = pdev; | |
1248 | ||
1249 | spin_lock_init(&lp->lock); | |
1250 | ||
1251 | SET_MODULE_OWNER(dev); | |
1252 | SET_NETDEV_DEV(dev, &pdev->dev); | |
1253 | dev->priv = lp; | |
1254 | lp->name = chipname; | |
1255 | lp->shared_irq = shared; | |
1256 | lp->tx_ring_size = TX_RING_SIZE; /* default tx ring size */ | |
1257 | lp->rx_ring_size = RX_RING_SIZE; /* default rx ring size */ | |
1258 | lp->tx_mod_mask = lp->tx_ring_size - 1; | |
1259 | lp->rx_mod_mask = lp->rx_ring_size - 1; | |
1260 | lp->tx_len_bits = (PCNET32_LOG_TX_BUFFERS << 12); | |
1261 | lp->rx_len_bits = (PCNET32_LOG_RX_BUFFERS << 4); | |
1262 | lp->mii_if.full_duplex = fdx; | |
1263 | lp->mii_if.phy_id_mask = 0x1f; | |
1264 | lp->mii_if.reg_num_mask = 0x1f; | |
1265 | lp->dxsuflo = dxsuflo; | |
1266 | lp->mii = mii; | |
1267 | lp->msg_enable = pcnet32_debug; | |
1268 | if ((cards_found >= MAX_UNITS) | |
1269 | || (options[cards_found] > sizeof(options_mapping))) | |
1270 | lp->options = PCNET32_PORT_ASEL; | |
1271 | else | |
1272 | lp->options = options_mapping[options[cards_found]]; | |
1273 | lp->mii_if.dev = dev; | |
1274 | lp->mii_if.mdio_read = mdio_read; | |
1275 | lp->mii_if.mdio_write = mdio_write; | |
1276 | ||
1277 | if (fdx && !(lp->options & PCNET32_PORT_ASEL) && | |
1278 | ((cards_found >= MAX_UNITS) || full_duplex[cards_found])) | |
1279 | lp->options |= PCNET32_PORT_FD; | |
1280 | ||
1281 | if (!a) { | |
1282 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1283 | printk(KERN_ERR PFX "No access methods\n"); | |
1284 | ret = -ENODEV; | |
1285 | goto err_free_consistent; | |
1286 | } | |
1287 | lp->a = *a; | |
1288 | ||
1289 | /* prior to register_netdev, dev->name is not yet correct */ | |
1290 | if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) { | |
1291 | ret = -ENOMEM; | |
1292 | goto err_free_ring; | |
1293 | } | |
1294 | /* detect special T1/E1 WAN card by checking for MAC address */ | |
1295 | if (dev->dev_addr[0] == 0x00 && dev->dev_addr[1] == 0xe0 | |
1da177e4 | 1296 | && dev->dev_addr[2] == 0x75) |
4a5e8e29 | 1297 | lp->options = PCNET32_PORT_FD | PCNET32_PORT_GPSI; |
1da177e4 | 1298 | |
4a5e8e29 JG |
1299 | lp->init_block.mode = le16_to_cpu(0x0003); /* Disable Rx and Tx. */ |
1300 | lp->init_block.tlen_rlen = | |
1301 | le16_to_cpu(lp->tx_len_bits | lp->rx_len_bits); | |
1302 | for (i = 0; i < 6; i++) | |
1303 | lp->init_block.phys_addr[i] = dev->dev_addr[i]; | |
1304 | lp->init_block.filter[0] = 0x00000000; | |
1305 | lp->init_block.filter[1] = 0x00000000; | |
1306 | lp->init_block.rx_ring = (u32) le32_to_cpu(lp->rx_ring_dma_addr); | |
1307 | lp->init_block.tx_ring = (u32) le32_to_cpu(lp->tx_ring_dma_addr); | |
1308 | ||
1309 | /* switch pcnet32 to 32bit mode */ | |
1310 | a->write_bcr(ioaddr, 20, 2); | |
1311 | ||
1312 | a->write_csr(ioaddr, 1, (lp->dma_addr + offsetof(struct pcnet32_private, | |
1313 | init_block)) & 0xffff); | |
1314 | a->write_csr(ioaddr, 2, (lp->dma_addr + offsetof(struct pcnet32_private, | |
1315 | init_block)) >> 16); | |
1316 | ||
1317 | if (pdev) { /* use the IRQ provided by PCI */ | |
1318 | dev->irq = pdev->irq; | |
1319 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1320 | printk(" assigned IRQ %d.\n", dev->irq); | |
1321 | } else { | |
1322 | unsigned long irq_mask = probe_irq_on(); | |
1323 | ||
1324 | /* | |
1325 | * To auto-IRQ we enable the initialization-done and DMA error | |
1326 | * interrupts. For ISA boards we get a DMA error, but VLB and PCI | |
1327 | * boards will work. | |
1328 | */ | |
1329 | /* Trigger an initialization just for the interrupt. */ | |
1330 | a->write_csr(ioaddr, 0, 0x41); | |
1331 | mdelay(1); | |
1332 | ||
1333 | dev->irq = probe_irq_off(irq_mask); | |
1334 | if (!dev->irq) { | |
1335 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1336 | printk(", failed to detect IRQ line.\n"); | |
1337 | ret = -ENODEV; | |
1338 | goto err_free_ring; | |
1339 | } | |
1340 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1341 | printk(", probed IRQ %d.\n", dev->irq); | |
1342 | } | |
1da177e4 | 1343 | |
4a5e8e29 JG |
1344 | /* Set the mii phy_id so that we can query the link state */ |
1345 | if (lp->mii) { | |
1346 | /* lp->phycount and lp->phymask are set to 0 by memset above */ | |
1347 | ||
1348 | lp->mii_if.phy_id = ((lp->a.read_bcr(ioaddr, 33)) >> 5) & 0x1f; | |
1349 | /* scan for PHYs */ | |
1350 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { | |
1351 | unsigned short id1, id2; | |
1352 | ||
1353 | id1 = mdio_read(dev, i, MII_PHYSID1); | |
1354 | if (id1 == 0xffff) | |
1355 | continue; | |
1356 | id2 = mdio_read(dev, i, MII_PHYSID2); | |
1357 | if (id2 == 0xffff) | |
1358 | continue; | |
1359 | if (i == 31 && ((chip_version + 1) & 0xfffe) == 0x2624) | |
1360 | continue; /* 79C971 & 79C972 have phantom phy at id 31 */ | |
1361 | lp->phycount++; | |
1362 | lp->phymask |= (1 << i); | |
1363 | lp->mii_if.phy_id = i; | |
1364 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1365 | printk(KERN_INFO PFX | |
1366 | "Found PHY %04x:%04x at address %d.\n", | |
1367 | id1, id2, i); | |
1368 | } | |
1369 | lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); | |
1370 | if (lp->phycount > 1) { | |
1371 | lp->options |= PCNET32_PORT_MII; | |
1372 | } | |
1da177e4 | 1373 | } |
4a5e8e29 JG |
1374 | |
1375 | init_timer(&lp->watchdog_timer); | |
1376 | lp->watchdog_timer.data = (unsigned long)dev; | |
1377 | lp->watchdog_timer.function = (void *)&pcnet32_watchdog; | |
1378 | ||
1379 | /* The PCNET32-specific entries in the device structure. */ | |
1380 | dev->open = &pcnet32_open; | |
1381 | dev->hard_start_xmit = &pcnet32_start_xmit; | |
1382 | dev->stop = &pcnet32_close; | |
1383 | dev->get_stats = &pcnet32_get_stats; | |
1384 | dev->set_multicast_list = &pcnet32_set_multicast_list; | |
1385 | dev->do_ioctl = &pcnet32_ioctl; | |
1386 | dev->ethtool_ops = &pcnet32_ethtool_ops; | |
1387 | dev->tx_timeout = pcnet32_tx_timeout; | |
1388 | dev->watchdog_timeo = (5 * HZ); | |
1da177e4 LT |
1389 | |
1390 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
4a5e8e29 | 1391 | dev->poll_controller = pcnet32_poll_controller; |
1da177e4 LT |
1392 | #endif |
1393 | ||
4a5e8e29 JG |
1394 | /* Fill in the generic fields of the device structure. */ |
1395 | if (register_netdev(dev)) | |
1396 | goto err_free_ring; | |
1397 | ||
1398 | if (pdev) { | |
1399 | pci_set_drvdata(pdev, dev); | |
1400 | } else { | |
1401 | lp->next = pcnet32_dev; | |
1402 | pcnet32_dev = dev; | |
1403 | } | |
1404 | ||
1405 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1406 | printk(KERN_INFO "%s: registered as %s\n", dev->name, lp->name); | |
1407 | cards_found++; | |
1408 | ||
1409 | /* enable LED writes */ | |
1410 | a->write_bcr(ioaddr, 2, a->read_bcr(ioaddr, 2) | 0x1000); | |
1da177e4 | 1411 | |
4a5e8e29 JG |
1412 | return 0; |
1413 | ||
1414 | err_free_ring: | |
1415 | pcnet32_free_ring(dev); | |
1416 | err_free_consistent: | |
1417 | pci_free_consistent(lp->pci_dev, sizeof(*lp), lp, lp->dma_addr); | |
1418 | err_free_netdev: | |
1419 | free_netdev(dev); | |
1420 | err_release_region: | |
1421 | release_region(ioaddr, PCNET32_TOTAL_SIZE); | |
1422 | return ret; | |
1423 | } | |
1da177e4 | 1424 | |
a88c844c DF |
1425 | /* if any allocation fails, caller must also call pcnet32_free_ring */ |
1426 | static int pcnet32_alloc_ring(struct net_device *dev, char *name) | |
eabf0415 | 1427 | { |
4a5e8e29 | 1428 | struct pcnet32_private *lp = dev->priv; |
eabf0415 | 1429 | |
4a5e8e29 JG |
1430 | lp->tx_ring = pci_alloc_consistent(lp->pci_dev, |
1431 | sizeof(struct pcnet32_tx_head) * | |
1432 | lp->tx_ring_size, | |
1433 | &lp->tx_ring_dma_addr); | |
1434 | if (lp->tx_ring == NULL) { | |
1435 | if (pcnet32_debug & NETIF_MSG_DRV) | |
1436 | printk("\n" KERN_ERR PFX | |
1437 | "%s: Consistent memory allocation failed.\n", | |
1438 | name); | |
1439 | return -ENOMEM; | |
1440 | } | |
eabf0415 | 1441 | |
4a5e8e29 JG |
1442 | lp->rx_ring = pci_alloc_consistent(lp->pci_dev, |
1443 | sizeof(struct pcnet32_rx_head) * | |
1444 | lp->rx_ring_size, | |
1445 | &lp->rx_ring_dma_addr); | |
1446 | if (lp->rx_ring == NULL) { | |
1447 | if (pcnet32_debug & NETIF_MSG_DRV) | |
1448 | printk("\n" KERN_ERR PFX | |
1449 | "%s: Consistent memory allocation failed.\n", | |
1450 | name); | |
1451 | return -ENOMEM; | |
1452 | } | |
eabf0415 | 1453 | |
4a5e8e29 JG |
1454 | lp->tx_dma_addr = kmalloc(sizeof(dma_addr_t) * lp->tx_ring_size, |
1455 | GFP_ATOMIC); | |
1456 | if (!lp->tx_dma_addr) { | |
1457 | if (pcnet32_debug & NETIF_MSG_DRV) | |
1458 | printk("\n" KERN_ERR PFX | |
1459 | "%s: Memory allocation failed.\n", name); | |
1460 | return -ENOMEM; | |
1461 | } | |
1462 | memset(lp->tx_dma_addr, 0, sizeof(dma_addr_t) * lp->tx_ring_size); | |
1463 | ||
1464 | lp->rx_dma_addr = kmalloc(sizeof(dma_addr_t) * lp->rx_ring_size, | |
1465 | GFP_ATOMIC); | |
1466 | if (!lp->rx_dma_addr) { | |
1467 | if (pcnet32_debug & NETIF_MSG_DRV) | |
1468 | printk("\n" KERN_ERR PFX | |
1469 | "%s: Memory allocation failed.\n", name); | |
1470 | return -ENOMEM; | |
1471 | } | |
1472 | memset(lp->rx_dma_addr, 0, sizeof(dma_addr_t) * lp->rx_ring_size); | |
1473 | ||
1474 | lp->tx_skbuff = kmalloc(sizeof(struct sk_buff *) * lp->tx_ring_size, | |
1475 | GFP_ATOMIC); | |
1476 | if (!lp->tx_skbuff) { | |
1477 | if (pcnet32_debug & NETIF_MSG_DRV) | |
1478 | printk("\n" KERN_ERR PFX | |
1479 | "%s: Memory allocation failed.\n", name); | |
1480 | return -ENOMEM; | |
1481 | } | |
1482 | memset(lp->tx_skbuff, 0, sizeof(struct sk_buff *) * lp->tx_ring_size); | |
1483 | ||
1484 | lp->rx_skbuff = kmalloc(sizeof(struct sk_buff *) * lp->rx_ring_size, | |
1485 | GFP_ATOMIC); | |
1486 | if (!lp->rx_skbuff) { | |
1487 | if (pcnet32_debug & NETIF_MSG_DRV) | |
1488 | printk("\n" KERN_ERR PFX | |
1489 | "%s: Memory allocation failed.\n", name); | |
1490 | return -ENOMEM; | |
1491 | } | |
1492 | memset(lp->rx_skbuff, 0, sizeof(struct sk_buff *) * lp->rx_ring_size); | |
1493 | ||
1494 | return 0; | |
1495 | } | |
eabf0415 HWL |
1496 | |
1497 | static void pcnet32_free_ring(struct net_device *dev) | |
1498 | { | |
4a5e8e29 | 1499 | struct pcnet32_private *lp = dev->priv; |
eabf0415 | 1500 | |
4a5e8e29 JG |
1501 | kfree(lp->tx_skbuff); |
1502 | lp->tx_skbuff = NULL; | |
eabf0415 | 1503 | |
4a5e8e29 JG |
1504 | kfree(lp->rx_skbuff); |
1505 | lp->rx_skbuff = NULL; | |
eabf0415 | 1506 | |
4a5e8e29 JG |
1507 | kfree(lp->tx_dma_addr); |
1508 | lp->tx_dma_addr = NULL; | |
eabf0415 | 1509 | |
4a5e8e29 JG |
1510 | kfree(lp->rx_dma_addr); |
1511 | lp->rx_dma_addr = NULL; | |
eabf0415 | 1512 | |
4a5e8e29 JG |
1513 | if (lp->tx_ring) { |
1514 | pci_free_consistent(lp->pci_dev, | |
1515 | sizeof(struct pcnet32_tx_head) * | |
1516 | lp->tx_ring_size, lp->tx_ring, | |
1517 | lp->tx_ring_dma_addr); | |
1518 | lp->tx_ring = NULL; | |
1519 | } | |
eabf0415 | 1520 | |
4a5e8e29 JG |
1521 | if (lp->rx_ring) { |
1522 | pci_free_consistent(lp->pci_dev, | |
1523 | sizeof(struct pcnet32_rx_head) * | |
1524 | lp->rx_ring_size, lp->rx_ring, | |
1525 | lp->rx_ring_dma_addr); | |
1526 | lp->rx_ring = NULL; | |
1527 | } | |
eabf0415 HWL |
1528 | } |
1529 | ||
4a5e8e29 | 1530 | static int pcnet32_open(struct net_device *dev) |
1da177e4 | 1531 | { |
4a5e8e29 JG |
1532 | struct pcnet32_private *lp = dev->priv; |
1533 | unsigned long ioaddr = dev->base_addr; | |
1534 | u16 val; | |
1535 | int i; | |
1536 | int rc; | |
1537 | unsigned long flags; | |
1538 | ||
1539 | if (request_irq(dev->irq, &pcnet32_interrupt, | |
1fb9df5d | 1540 | lp->shared_irq ? IRQF_SHARED : 0, dev->name, |
4a5e8e29 JG |
1541 | (void *)dev)) { |
1542 | return -EAGAIN; | |
1543 | } | |
1544 | ||
1545 | spin_lock_irqsave(&lp->lock, flags); | |
1546 | /* Check for a valid station address */ | |
1547 | if (!is_valid_ether_addr(dev->dev_addr)) { | |
1548 | rc = -EINVAL; | |
1549 | goto err_free_irq; | |
1550 | } | |
1551 | ||
1552 | /* Reset the PCNET32 */ | |
1553 | lp->a.reset(ioaddr); | |
1554 | ||
1555 | /* switch pcnet32 to 32bit mode */ | |
1556 | lp->a.write_bcr(ioaddr, 20, 2); | |
1557 | ||
1558 | if (netif_msg_ifup(lp)) | |
1559 | printk(KERN_DEBUG | |
1560 | "%s: pcnet32_open() irq %d tx/rx rings %#x/%#x init %#x.\n", | |
1561 | dev->name, dev->irq, (u32) (lp->tx_ring_dma_addr), | |
1562 | (u32) (lp->rx_ring_dma_addr), | |
1563 | (u32) (lp->dma_addr + | |
1564 | offsetof(struct pcnet32_private, init_block))); | |
1565 | ||
1566 | /* set/reset autoselect bit */ | |
1567 | val = lp->a.read_bcr(ioaddr, 2) & ~2; | |
1568 | if (lp->options & PCNET32_PORT_ASEL) | |
1da177e4 | 1569 | val |= 2; |
4a5e8e29 JG |
1570 | lp->a.write_bcr(ioaddr, 2, val); |
1571 | ||
1572 | /* handle full duplex setting */ | |
1573 | if (lp->mii_if.full_duplex) { | |
1574 | val = lp->a.read_bcr(ioaddr, 9) & ~3; | |
1575 | if (lp->options & PCNET32_PORT_FD) { | |
1576 | val |= 1; | |
1577 | if (lp->options == (PCNET32_PORT_FD | PCNET32_PORT_AUI)) | |
1578 | val |= 2; | |
1579 | } else if (lp->options & PCNET32_PORT_ASEL) { | |
1580 | /* workaround of xSeries250, turn on for 79C975 only */ | |
1581 | i = ((lp->a.read_csr(ioaddr, 88) | | |
1582 | (lp->a. | |
1583 | read_csr(ioaddr, 89) << 16)) >> 12) & 0xffff; | |
1584 | if (i == 0x2627) | |
1585 | val |= 3; | |
1586 | } | |
1587 | lp->a.write_bcr(ioaddr, 9, val); | |
1588 | } | |
1589 | ||
1590 | /* set/reset GPSI bit in test register */ | |
1591 | val = lp->a.read_csr(ioaddr, 124) & ~0x10; | |
1592 | if ((lp->options & PCNET32_PORT_PORTSEL) == PCNET32_PORT_GPSI) | |
1593 | val |= 0x10; | |
1594 | lp->a.write_csr(ioaddr, 124, val); | |
1595 | ||
1596 | /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */ | |
1597 | if (lp->pci_dev->subsystem_vendor == PCI_VENDOR_ID_AT && | |
2964bbd7 DF |
1598 | (lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX || |
1599 | lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) { | |
ac62ef04 | 1600 | if (lp->options & PCNET32_PORT_ASEL) { |
4a5e8e29 JG |
1601 | lp->options = PCNET32_PORT_FD | PCNET32_PORT_100; |
1602 | if (netif_msg_link(lp)) | |
1603 | printk(KERN_DEBUG | |
1604 | "%s: Setting 100Mb-Full Duplex.\n", | |
1605 | dev->name); | |
1606 | } | |
1607 | } | |
1608 | if (lp->phycount < 2) { | |
1609 | /* | |
1610 | * 24 Jun 2004 according AMD, in order to change the PHY, | |
1611 | * DANAS (or DISPM for 79C976) must be set; then select the speed, | |
1612 | * duplex, and/or enable auto negotiation, and clear DANAS | |
1613 | */ | |
1614 | if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) { | |
1615 | lp->a.write_bcr(ioaddr, 32, | |
1616 | lp->a.read_bcr(ioaddr, 32) | 0x0080); | |
1617 | /* disable Auto Negotiation, set 10Mpbs, HD */ | |
1618 | val = lp->a.read_bcr(ioaddr, 32) & ~0xb8; | |
1619 | if (lp->options & PCNET32_PORT_FD) | |
1620 | val |= 0x10; | |
1621 | if (lp->options & PCNET32_PORT_100) | |
1622 | val |= 0x08; | |
1623 | lp->a.write_bcr(ioaddr, 32, val); | |
1624 | } else { | |
1625 | if (lp->options & PCNET32_PORT_ASEL) { | |
1626 | lp->a.write_bcr(ioaddr, 32, | |
1627 | lp->a.read_bcr(ioaddr, | |
1628 | 32) | 0x0080); | |
1629 | /* enable auto negotiate, setup, disable fd */ | |
1630 | val = lp->a.read_bcr(ioaddr, 32) & ~0x98; | |
1631 | val |= 0x20; | |
1632 | lp->a.write_bcr(ioaddr, 32, val); | |
1633 | } | |
1634 | } | |
1635 | } else { | |
1636 | int first_phy = -1; | |
1637 | u16 bmcr; | |
1638 | u32 bcr9; | |
1639 | struct ethtool_cmd ecmd; | |
1640 | ||
1641 | /* | |
1642 | * There is really no good other way to handle multiple PHYs | |
1643 | * other than turning off all automatics | |
1644 | */ | |
1645 | val = lp->a.read_bcr(ioaddr, 2); | |
1646 | lp->a.write_bcr(ioaddr, 2, val & ~2); | |
1647 | val = lp->a.read_bcr(ioaddr, 32); | |
1648 | lp->a.write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */ | |
1649 | ||
1650 | if (!(lp->options & PCNET32_PORT_ASEL)) { | |
1651 | /* setup ecmd */ | |
1652 | ecmd.port = PORT_MII; | |
1653 | ecmd.transceiver = XCVR_INTERNAL; | |
1654 | ecmd.autoneg = AUTONEG_DISABLE; | |
1655 | ecmd.speed = | |
1656 | lp-> | |
1657 | options & PCNET32_PORT_100 ? SPEED_100 : SPEED_10; | |
1658 | bcr9 = lp->a.read_bcr(ioaddr, 9); | |
1659 | ||
1660 | if (lp->options & PCNET32_PORT_FD) { | |
1661 | ecmd.duplex = DUPLEX_FULL; | |
1662 | bcr9 |= (1 << 0); | |
1663 | } else { | |
1664 | ecmd.duplex = DUPLEX_HALF; | |
1665 | bcr9 |= ~(1 << 0); | |
1666 | } | |
1667 | lp->a.write_bcr(ioaddr, 9, bcr9); | |
ac62ef04 | 1668 | } |
4a5e8e29 JG |
1669 | |
1670 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { | |
1671 | if (lp->phymask & (1 << i)) { | |
1672 | /* isolate all but the first PHY */ | |
1673 | bmcr = mdio_read(dev, i, MII_BMCR); | |
1674 | if (first_phy == -1) { | |
1675 | first_phy = i; | |
1676 | mdio_write(dev, i, MII_BMCR, | |
1677 | bmcr & ~BMCR_ISOLATE); | |
1678 | } else { | |
1679 | mdio_write(dev, i, MII_BMCR, | |
1680 | bmcr | BMCR_ISOLATE); | |
1681 | } | |
1682 | /* use mii_ethtool_sset to setup PHY */ | |
1683 | lp->mii_if.phy_id = i; | |
1684 | ecmd.phy_address = i; | |
1685 | if (lp->options & PCNET32_PORT_ASEL) { | |
1686 | mii_ethtool_gset(&lp->mii_if, &ecmd); | |
1687 | ecmd.autoneg = AUTONEG_ENABLE; | |
1688 | } | |
1689 | mii_ethtool_sset(&lp->mii_if, &ecmd); | |
1690 | } | |
1691 | } | |
1692 | lp->mii_if.phy_id = first_phy; | |
1693 | if (netif_msg_link(lp)) | |
1694 | printk(KERN_INFO "%s: Using PHY number %d.\n", | |
1695 | dev->name, first_phy); | |
1696 | } | |
1da177e4 LT |
1697 | |
1698 | #ifdef DO_DXSUFLO | |
4a5e8e29 JG |
1699 | if (lp->dxsuflo) { /* Disable transmit stop on underflow */ |
1700 | val = lp->a.read_csr(ioaddr, 3); | |
1701 | val |= 0x40; | |
1702 | lp->a.write_csr(ioaddr, 3, val); | |
1703 | } | |
1da177e4 LT |
1704 | #endif |
1705 | ||
4a5e8e29 JG |
1706 | lp->init_block.mode = |
1707 | le16_to_cpu((lp->options & PCNET32_PORT_PORTSEL) << 7); | |
1708 | pcnet32_load_multicast(dev); | |
1709 | ||
1710 | if (pcnet32_init_ring(dev)) { | |
1711 | rc = -ENOMEM; | |
1712 | goto err_free_ring; | |
1713 | } | |
1714 | ||
1715 | /* Re-initialize the PCNET32, and start it when done. */ | |
1716 | lp->a.write_csr(ioaddr, 1, (lp->dma_addr + | |
1717 | offsetof(struct pcnet32_private, | |
1718 | init_block)) & 0xffff); | |
1719 | lp->a.write_csr(ioaddr, 2, | |
1720 | (lp->dma_addr + | |
1721 | offsetof(struct pcnet32_private, init_block)) >> 16); | |
1722 | ||
1723 | lp->a.write_csr(ioaddr, 4, 0x0915); | |
1724 | lp->a.write_csr(ioaddr, 0, 0x0001); | |
1725 | ||
1726 | netif_start_queue(dev); | |
1727 | ||
1728 | /* Print the link status and start the watchdog */ | |
1729 | pcnet32_check_media(dev, 1); | |
1730 | mod_timer(&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT); | |
1731 | ||
1732 | i = 0; | |
1733 | while (i++ < 100) | |
1734 | if (lp->a.read_csr(ioaddr, 0) & 0x0100) | |
1735 | break; | |
1736 | /* | |
1737 | * We used to clear the InitDone bit, 0x0100, here but Mark Stockton | |
1738 | * reports that doing so triggers a bug in the '974. | |
1739 | */ | |
1740 | lp->a.write_csr(ioaddr, 0, 0x0042); | |
1741 | ||
1742 | if (netif_msg_ifup(lp)) | |
1743 | printk(KERN_DEBUG | |
1744 | "%s: pcnet32 open after %d ticks, init block %#x csr0 %4.4x.\n", | |
1745 | dev->name, i, | |
1746 | (u32) (lp->dma_addr + | |
1747 | offsetof(struct pcnet32_private, init_block)), | |
1748 | lp->a.read_csr(ioaddr, 0)); | |
1749 | ||
1750 | spin_unlock_irqrestore(&lp->lock, flags); | |
1751 | ||
1752 | return 0; /* Always succeed */ | |
1753 | ||
1754 | err_free_ring: | |
1755 | /* free any allocated skbuffs */ | |
1756 | for (i = 0; i < lp->rx_ring_size; i++) { | |
1757 | lp->rx_ring[i].status = 0; | |
1758 | if (lp->rx_skbuff[i]) { | |
1759 | pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[i], | |
1760 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); | |
1761 | dev_kfree_skb(lp->rx_skbuff[i]); | |
1762 | } | |
1763 | lp->rx_skbuff[i] = NULL; | |
1764 | lp->rx_dma_addr[i] = 0; | |
1765 | } | |
1766 | ||
4a5e8e29 JG |
1767 | /* |
1768 | * Switch back to 16bit mode to avoid problems with dumb | |
1769 | * DOS packet driver after a warm reboot | |
1770 | */ | |
1771 | lp->a.write_bcr(ioaddr, 20, 4); | |
1772 | ||
1773 | err_free_irq: | |
1774 | spin_unlock_irqrestore(&lp->lock, flags); | |
1775 | free_irq(dev->irq, dev); | |
1776 | return rc; | |
1da177e4 LT |
1777 | } |
1778 | ||
1779 | /* | |
1780 | * The LANCE has been halted for one reason or another (busmaster memory | |
1781 | * arbitration error, Tx FIFO underflow, driver stopped it to reconfigure, | |
1782 | * etc.). Modern LANCE variants always reload their ring-buffer | |
1783 | * configuration when restarted, so we must reinitialize our ring | |
1784 | * context before restarting. As part of this reinitialization, | |
1785 | * find all packets still on the Tx ring and pretend that they had been | |
1786 | * sent (in effect, drop the packets on the floor) - the higher-level | |
1787 | * protocols will time out and retransmit. It'd be better to shuffle | |
1788 | * these skbs to a temp list and then actually re-Tx them after | |
1789 | * restarting the chip, but I'm too lazy to do so right now. dplatt@3do.com | |
1790 | */ | |
1791 | ||
4a5e8e29 | 1792 | static void pcnet32_purge_tx_ring(struct net_device *dev) |
1da177e4 | 1793 | { |
4a5e8e29 JG |
1794 | struct pcnet32_private *lp = dev->priv; |
1795 | int i; | |
1da177e4 | 1796 | |
4a5e8e29 JG |
1797 | for (i = 0; i < lp->tx_ring_size; i++) { |
1798 | lp->tx_ring[i].status = 0; /* CPU owns buffer */ | |
1799 | wmb(); /* Make sure adapter sees owner change */ | |
1800 | if (lp->tx_skbuff[i]) { | |
1801 | pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[i], | |
1802 | lp->tx_skbuff[i]->len, | |
1803 | PCI_DMA_TODEVICE); | |
1804 | dev_kfree_skb_any(lp->tx_skbuff[i]); | |
1805 | } | |
1806 | lp->tx_skbuff[i] = NULL; | |
1807 | lp->tx_dma_addr[i] = 0; | |
1808 | } | |
1809 | } | |
1da177e4 LT |
1810 | |
1811 | /* Initialize the PCNET32 Rx and Tx rings. */ | |
4a5e8e29 | 1812 | static int pcnet32_init_ring(struct net_device *dev) |
1da177e4 | 1813 | { |
4a5e8e29 JG |
1814 | struct pcnet32_private *lp = dev->priv; |
1815 | int i; | |
1816 | ||
1817 | lp->tx_full = 0; | |
1818 | lp->cur_rx = lp->cur_tx = 0; | |
1819 | lp->dirty_rx = lp->dirty_tx = 0; | |
1820 | ||
1821 | for (i = 0; i < lp->rx_ring_size; i++) { | |
1822 | struct sk_buff *rx_skbuff = lp->rx_skbuff[i]; | |
1823 | if (rx_skbuff == NULL) { | |
1824 | if (! | |
1825 | (rx_skbuff = lp->rx_skbuff[i] = | |
1826 | dev_alloc_skb(PKT_BUF_SZ))) { | |
1827 | /* there is not much, we can do at this point */ | |
1828 | if (pcnet32_debug & NETIF_MSG_DRV) | |
1829 | printk(KERN_ERR | |
1830 | "%s: pcnet32_init_ring dev_alloc_skb failed.\n", | |
1831 | dev->name); | |
1832 | return -1; | |
1833 | } | |
1834 | skb_reserve(rx_skbuff, 2); | |
1835 | } | |
1836 | ||
1837 | rmb(); | |
1838 | if (lp->rx_dma_addr[i] == 0) | |
1839 | lp->rx_dma_addr[i] = | |
1840 | pci_map_single(lp->pci_dev, rx_skbuff->data, | |
1841 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); | |
1842 | lp->rx_ring[i].base = (u32) le32_to_cpu(lp->rx_dma_addr[i]); | |
1843 | lp->rx_ring[i].buf_length = le16_to_cpu(2 - PKT_BUF_SZ); | |
1844 | wmb(); /* Make sure owner changes after all others are visible */ | |
1845 | lp->rx_ring[i].status = le16_to_cpu(0x8000); | |
1846 | } | |
1847 | /* The Tx buffer address is filled in as needed, but we do need to clear | |
1848 | * the upper ownership bit. */ | |
1849 | for (i = 0; i < lp->tx_ring_size; i++) { | |
1850 | lp->tx_ring[i].status = 0; /* CPU owns buffer */ | |
1851 | wmb(); /* Make sure adapter sees owner change */ | |
1852 | lp->tx_ring[i].base = 0; | |
1853 | lp->tx_dma_addr[i] = 0; | |
1854 | } | |
1855 | ||
1856 | lp->init_block.tlen_rlen = | |
1857 | le16_to_cpu(lp->tx_len_bits | lp->rx_len_bits); | |
1858 | for (i = 0; i < 6; i++) | |
1859 | lp->init_block.phys_addr[i] = dev->dev_addr[i]; | |
1860 | lp->init_block.rx_ring = (u32) le32_to_cpu(lp->rx_ring_dma_addr); | |
1861 | lp->init_block.tx_ring = (u32) le32_to_cpu(lp->tx_ring_dma_addr); | |
1862 | wmb(); /* Make sure all changes are visible */ | |
1863 | return 0; | |
1da177e4 LT |
1864 | } |
1865 | ||
1866 | /* the pcnet32 has been issued a stop or reset. Wait for the stop bit | |
1867 | * then flush the pending transmit operations, re-initialize the ring, | |
1868 | * and tell the chip to initialize. | |
1869 | */ | |
4a5e8e29 | 1870 | static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits) |
1da177e4 | 1871 | { |
4a5e8e29 JG |
1872 | struct pcnet32_private *lp = dev->priv; |
1873 | unsigned long ioaddr = dev->base_addr; | |
1874 | int i; | |
1da177e4 | 1875 | |
4a5e8e29 JG |
1876 | /* wait for stop */ |
1877 | for (i = 0; i < 100; i++) | |
1878 | if (lp->a.read_csr(ioaddr, 0) & 0x0004) | |
1879 | break; | |
1da177e4 | 1880 | |
4a5e8e29 JG |
1881 | if (i >= 100 && netif_msg_drv(lp)) |
1882 | printk(KERN_ERR | |
1883 | "%s: pcnet32_restart timed out waiting for stop.\n", | |
1884 | dev->name); | |
1da177e4 | 1885 | |
4a5e8e29 JG |
1886 | pcnet32_purge_tx_ring(dev); |
1887 | if (pcnet32_init_ring(dev)) | |
1888 | return; | |
1da177e4 | 1889 | |
4a5e8e29 JG |
1890 | /* ReInit Ring */ |
1891 | lp->a.write_csr(ioaddr, 0, 1); | |
1892 | i = 0; | |
1893 | while (i++ < 1000) | |
1894 | if (lp->a.read_csr(ioaddr, 0) & 0x0100) | |
1895 | break; | |
1da177e4 | 1896 | |
4a5e8e29 | 1897 | lp->a.write_csr(ioaddr, 0, csr0_bits); |
1da177e4 LT |
1898 | } |
1899 | ||
4a5e8e29 | 1900 | static void pcnet32_tx_timeout(struct net_device *dev) |
1da177e4 | 1901 | { |
4a5e8e29 JG |
1902 | struct pcnet32_private *lp = dev->priv; |
1903 | unsigned long ioaddr = dev->base_addr, flags; | |
1904 | ||
1905 | spin_lock_irqsave(&lp->lock, flags); | |
1906 | /* Transmitter timeout, serious problems. */ | |
1907 | if (pcnet32_debug & NETIF_MSG_DRV) | |
1908 | printk(KERN_ERR | |
1909 | "%s: transmit timed out, status %4.4x, resetting.\n", | |
1910 | dev->name, lp->a.read_csr(ioaddr, 0)); | |
1911 | lp->a.write_csr(ioaddr, 0, 0x0004); | |
1912 | lp->stats.tx_errors++; | |
1913 | if (netif_msg_tx_err(lp)) { | |
1914 | int i; | |
1915 | printk(KERN_DEBUG | |
1916 | " Ring data dump: dirty_tx %d cur_tx %d%s cur_rx %d.", | |
1917 | lp->dirty_tx, lp->cur_tx, lp->tx_full ? " (full)" : "", | |
1918 | lp->cur_rx); | |
1919 | for (i = 0; i < lp->rx_ring_size; i++) | |
1920 | printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ", | |
1921 | le32_to_cpu(lp->rx_ring[i].base), | |
1922 | (-le16_to_cpu(lp->rx_ring[i].buf_length)) & | |
1923 | 0xffff, le32_to_cpu(lp->rx_ring[i].msg_length), | |
1924 | le16_to_cpu(lp->rx_ring[i].status)); | |
1925 | for (i = 0; i < lp->tx_ring_size; i++) | |
1926 | printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ", | |
1927 | le32_to_cpu(lp->tx_ring[i].base), | |
1928 | (-le16_to_cpu(lp->tx_ring[i].length)) & 0xffff, | |
1929 | le32_to_cpu(lp->tx_ring[i].misc), | |
1930 | le16_to_cpu(lp->tx_ring[i].status)); | |
1931 | printk("\n"); | |
1932 | } | |
1933 | pcnet32_restart(dev, 0x0042); | |
1da177e4 | 1934 | |
4a5e8e29 JG |
1935 | dev->trans_start = jiffies; |
1936 | netif_wake_queue(dev); | |
1da177e4 | 1937 | |
4a5e8e29 JG |
1938 | spin_unlock_irqrestore(&lp->lock, flags); |
1939 | } | |
1940 | ||
1941 | static int pcnet32_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
1da177e4 | 1942 | { |
4a5e8e29 JG |
1943 | struct pcnet32_private *lp = dev->priv; |
1944 | unsigned long ioaddr = dev->base_addr; | |
1945 | u16 status; | |
1946 | int entry; | |
1947 | unsigned long flags; | |
1da177e4 | 1948 | |
4a5e8e29 | 1949 | spin_lock_irqsave(&lp->lock, flags); |
1da177e4 | 1950 | |
4a5e8e29 JG |
1951 | if (netif_msg_tx_queued(lp)) { |
1952 | printk(KERN_DEBUG | |
1953 | "%s: pcnet32_start_xmit() called, csr0 %4.4x.\n", | |
1954 | dev->name, lp->a.read_csr(ioaddr, 0)); | |
1955 | } | |
1da177e4 | 1956 | |
4a5e8e29 JG |
1957 | /* Default status -- will not enable Successful-TxDone |
1958 | * interrupt when that option is available to us. | |
1959 | */ | |
1960 | status = 0x8300; | |
1da177e4 | 1961 | |
4a5e8e29 | 1962 | /* Fill in a Tx ring entry */ |
1da177e4 | 1963 | |
4a5e8e29 JG |
1964 | /* Mask to ring buffer boundary. */ |
1965 | entry = lp->cur_tx & lp->tx_mod_mask; | |
1da177e4 | 1966 | |
4a5e8e29 JG |
1967 | /* Caution: the write order is important here, set the status |
1968 | * with the "ownership" bits last. */ | |
1da177e4 | 1969 | |
4a5e8e29 | 1970 | lp->tx_ring[entry].length = le16_to_cpu(-skb->len); |
1da177e4 | 1971 | |
4a5e8e29 | 1972 | lp->tx_ring[entry].misc = 0x00000000; |
1da177e4 | 1973 | |
4a5e8e29 JG |
1974 | lp->tx_skbuff[entry] = skb; |
1975 | lp->tx_dma_addr[entry] = | |
1976 | pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE); | |
1977 | lp->tx_ring[entry].base = (u32) le32_to_cpu(lp->tx_dma_addr[entry]); | |
1978 | wmb(); /* Make sure owner changes after all others are visible */ | |
1979 | lp->tx_ring[entry].status = le16_to_cpu(status); | |
1da177e4 | 1980 | |
4a5e8e29 JG |
1981 | lp->cur_tx++; |
1982 | lp->stats.tx_bytes += skb->len; | |
1da177e4 | 1983 | |
4a5e8e29 JG |
1984 | /* Trigger an immediate send poll. */ |
1985 | lp->a.write_csr(ioaddr, 0, 0x0048); | |
1da177e4 | 1986 | |
4a5e8e29 | 1987 | dev->trans_start = jiffies; |
1da177e4 | 1988 | |
4a5e8e29 JG |
1989 | if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) { |
1990 | lp->tx_full = 1; | |
1991 | netif_stop_queue(dev); | |
1992 | } | |
1993 | spin_unlock_irqrestore(&lp->lock, flags); | |
1994 | return 0; | |
1da177e4 LT |
1995 | } |
1996 | ||
1997 | /* The PCNET32 interrupt handler. */ | |
1998 | static irqreturn_t | |
4a5e8e29 | 1999 | pcnet32_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
1da177e4 | 2000 | { |
4a5e8e29 JG |
2001 | struct net_device *dev = dev_id; |
2002 | struct pcnet32_private *lp; | |
2003 | unsigned long ioaddr; | |
2004 | u16 csr0, rap; | |
2005 | int boguscnt = max_interrupt_work; | |
2006 | int must_restart; | |
2007 | ||
2008 | if (!dev) { | |
2009 | if (pcnet32_debug & NETIF_MSG_INTR) | |
2010 | printk(KERN_DEBUG "%s(): irq %d for unknown device\n", | |
2011 | __FUNCTION__, irq); | |
2012 | return IRQ_NONE; | |
1da177e4 | 2013 | } |
1da177e4 | 2014 | |
4a5e8e29 JG |
2015 | ioaddr = dev->base_addr; |
2016 | lp = dev->priv; | |
1da177e4 | 2017 | |
4a5e8e29 JG |
2018 | spin_lock(&lp->lock); |
2019 | ||
2020 | rap = lp->a.read_rap(ioaddr); | |
2021 | while ((csr0 = lp->a.read_csr(ioaddr, 0)) & 0x8f00 && --boguscnt >= 0) { | |
2022 | if (csr0 == 0xffff) { | |
2023 | break; /* PCMCIA remove happened */ | |
2024 | } | |
2025 | /* Acknowledge all of the current interrupt sources ASAP. */ | |
2026 | lp->a.write_csr(ioaddr, 0, csr0 & ~0x004f); | |
2027 | ||
2028 | must_restart = 0; | |
2029 | ||
2030 | if (netif_msg_intr(lp)) | |
2031 | printk(KERN_DEBUG | |
2032 | "%s: interrupt csr0=%#2.2x new csr=%#2.2x.\n", | |
2033 | dev->name, csr0, lp->a.read_csr(ioaddr, 0)); | |
2034 | ||
2035 | if (csr0 & 0x0400) /* Rx interrupt */ | |
2036 | pcnet32_rx(dev); | |
2037 | ||
2038 | if (csr0 & 0x0200) { /* Tx-done interrupt */ | |
2039 | unsigned int dirty_tx = lp->dirty_tx; | |
2040 | int delta; | |
2041 | ||
2042 | while (dirty_tx != lp->cur_tx) { | |
2043 | int entry = dirty_tx & lp->tx_mod_mask; | |
2044 | int status = | |
2045 | (short)le16_to_cpu(lp->tx_ring[entry]. | |
2046 | status); | |
2047 | ||
2048 | if (status < 0) | |
2049 | break; /* It still hasn't been Txed */ | |
2050 | ||
2051 | lp->tx_ring[entry].base = 0; | |
2052 | ||
2053 | if (status & 0x4000) { | |
2054 | /* There was an major error, log it. */ | |
2055 | int err_status = | |
2056 | le32_to_cpu(lp->tx_ring[entry]. | |
2057 | misc); | |
2058 | lp->stats.tx_errors++; | |
2059 | if (netif_msg_tx_err(lp)) | |
2060 | printk(KERN_ERR | |
2061 | "%s: Tx error status=%04x err_status=%08x\n", | |
2062 | dev->name, status, | |
2063 | err_status); | |
2064 | if (err_status & 0x04000000) | |
2065 | lp->stats.tx_aborted_errors++; | |
2066 | if (err_status & 0x08000000) | |
2067 | lp->stats.tx_carrier_errors++; | |
2068 | if (err_status & 0x10000000) | |
2069 | lp->stats.tx_window_errors++; | |
1da177e4 | 2070 | #ifndef DO_DXSUFLO |
4a5e8e29 JG |
2071 | if (err_status & 0x40000000) { |
2072 | lp->stats.tx_fifo_errors++; | |
2073 | /* Ackk! On FIFO errors the Tx unit is turned off! */ | |
2074 | /* Remove this verbosity later! */ | |
2075 | if (netif_msg_tx_err(lp)) | |
2076 | printk(KERN_ERR | |
2077 | "%s: Tx FIFO error! CSR0=%4.4x\n", | |
2078 | dev->name, csr0); | |
2079 | must_restart = 1; | |
2080 | } | |
1da177e4 | 2081 | #else |
4a5e8e29 JG |
2082 | if (err_status & 0x40000000) { |
2083 | lp->stats.tx_fifo_errors++; | |
2084 | if (!lp->dxsuflo) { /* If controller doesn't recover ... */ | |
2085 | /* Ackk! On FIFO errors the Tx unit is turned off! */ | |
2086 | /* Remove this verbosity later! */ | |
2087 | if (netif_msg_tx_err | |
2088 | (lp)) | |
2089 | printk(KERN_ERR | |
2090 | "%s: Tx FIFO error! CSR0=%4.4x\n", | |
2091 | dev-> | |
2092 | name, | |
2093 | csr0); | |
2094 | must_restart = 1; | |
2095 | } | |
2096 | } | |
1da177e4 | 2097 | #endif |
4a5e8e29 JG |
2098 | } else { |
2099 | if (status & 0x1800) | |
2100 | lp->stats.collisions++; | |
2101 | lp->stats.tx_packets++; | |
2102 | } | |
2103 | ||
2104 | /* We must free the original skb */ | |
2105 | if (lp->tx_skbuff[entry]) { | |
2106 | pci_unmap_single(lp->pci_dev, | |
2107 | lp->tx_dma_addr[entry], | |
2108 | lp->tx_skbuff[entry]-> | |
2109 | len, PCI_DMA_TODEVICE); | |
2110 | dev_kfree_skb_irq(lp->tx_skbuff[entry]); | |
2111 | lp->tx_skbuff[entry] = NULL; | |
2112 | lp->tx_dma_addr[entry] = 0; | |
2113 | } | |
2114 | dirty_tx++; | |
2115 | } | |
2116 | ||
2117 | delta = | |
2118 | (lp->cur_tx - dirty_tx) & (lp->tx_mod_mask + | |
2119 | lp->tx_ring_size); | |
2120 | if (delta > lp->tx_ring_size) { | |
2121 | if (netif_msg_drv(lp)) | |
2122 | printk(KERN_ERR | |
2123 | "%s: out-of-sync dirty pointer, %d vs. %d, full=%d.\n", | |
2124 | dev->name, dirty_tx, lp->cur_tx, | |
2125 | lp->tx_full); | |
2126 | dirty_tx += lp->tx_ring_size; | |
2127 | delta -= lp->tx_ring_size; | |
2128 | } | |
2129 | ||
2130 | if (lp->tx_full && | |
2131 | netif_queue_stopped(dev) && | |
2132 | delta < lp->tx_ring_size - 2) { | |
2133 | /* The ring is no longer full, clear tbusy. */ | |
2134 | lp->tx_full = 0; | |
2135 | netif_wake_queue(dev); | |
2136 | } | |
2137 | lp->dirty_tx = dirty_tx; | |
2138 | } | |
2139 | ||
2140 | /* Log misc errors. */ | |
2141 | if (csr0 & 0x4000) | |
2142 | lp->stats.tx_errors++; /* Tx babble. */ | |
2143 | if (csr0 & 0x1000) { | |
2144 | /* | |
2145 | * this happens when our receive ring is full. This shouldn't | |
2146 | * be a problem as we will see normal rx interrupts for the frames | |
2147 | * in the receive ring. But there are some PCI chipsets (I can | |
2148 | * reproduce this on SP3G with Intel saturn chipset) which have | |
2149 | * sometimes problems and will fill up the receive ring with | |
2150 | * error descriptors. In this situation we don't get a rx | |
2151 | * interrupt, but a missed frame interrupt sooner or later. | |
2152 | * So we try to clean up our receive ring here. | |
2153 | */ | |
2154 | pcnet32_rx(dev); | |
2155 | lp->stats.rx_errors++; /* Missed a Rx frame. */ | |
2156 | } | |
2157 | if (csr0 & 0x0800) { | |
2158 | if (netif_msg_drv(lp)) | |
2159 | printk(KERN_ERR | |
2160 | "%s: Bus master arbitration failure, status %4.4x.\n", | |
2161 | dev->name, csr0); | |
2162 | /* unlike for the lance, there is no restart needed */ | |
1da177e4 LT |
2163 | } |
2164 | ||
4a5e8e29 JG |
2165 | if (must_restart) { |
2166 | /* reset the chip to clear the error condition, then restart */ | |
2167 | lp->a.reset(ioaddr); | |
2168 | lp->a.write_csr(ioaddr, 4, 0x0915); | |
2169 | pcnet32_restart(dev, 0x0002); | |
2170 | netif_wake_queue(dev); | |
1da177e4 | 2171 | } |
4a5e8e29 JG |
2172 | } |
2173 | ||
2174 | /* Set interrupt enable. */ | |
2175 | lp->a.write_csr(ioaddr, 0, 0x0040); | |
2176 | lp->a.write_rap(ioaddr, rap); | |
2177 | ||
2178 | if (netif_msg_intr(lp)) | |
2179 | printk(KERN_DEBUG "%s: exiting interrupt, csr0=%#4.4x.\n", | |
2180 | dev->name, lp->a.read_csr(ioaddr, 0)); | |
2181 | ||
2182 | spin_unlock(&lp->lock); | |
2183 | ||
2184 | return IRQ_HANDLED; | |
1da177e4 LT |
2185 | } |
2186 | ||
4a5e8e29 | 2187 | static int pcnet32_rx(struct net_device *dev) |
1da177e4 | 2188 | { |
4a5e8e29 JG |
2189 | struct pcnet32_private *lp = dev->priv; |
2190 | int entry = lp->cur_rx & lp->rx_mod_mask; | |
2191 | int boguscnt = lp->rx_ring_size / 2; | |
2192 | ||
2193 | /* If we own the next entry, it's a new packet. Send it up. */ | |
2194 | while ((short)le16_to_cpu(lp->rx_ring[entry].status) >= 0) { | |
2195 | int status = (short)le16_to_cpu(lp->rx_ring[entry].status) >> 8; | |
2196 | ||
2197 | if (status != 0x03) { /* There was an error. */ | |
2198 | /* | |
2199 | * There is a tricky error noted by John Murphy, | |
2200 | * <murf@perftech.com> to Russ Nelson: Even with full-sized | |
2201 | * buffers it's possible for a jabber packet to use two | |
2202 | * buffers, with only the last correctly noting the error. | |
2203 | */ | |
2204 | if (status & 0x01) /* Only count a general error at the */ | |
2205 | lp->stats.rx_errors++; /* end of a packet. */ | |
2206 | if (status & 0x20) | |
2207 | lp->stats.rx_frame_errors++; | |
2208 | if (status & 0x10) | |
2209 | lp->stats.rx_over_errors++; | |
2210 | if (status & 0x08) | |
2211 | lp->stats.rx_crc_errors++; | |
2212 | if (status & 0x04) | |
2213 | lp->stats.rx_fifo_errors++; | |
2214 | lp->rx_ring[entry].status &= le16_to_cpu(0x03ff); | |
1da177e4 | 2215 | } else { |
4a5e8e29 JG |
2216 | /* Malloc up new buffer, compatible with net-2e. */ |
2217 | short pkt_len = | |
2218 | (le32_to_cpu(lp->rx_ring[entry].msg_length) & 0xfff) | |
2219 | - 4; | |
2220 | struct sk_buff *skb; | |
2221 | ||
2222 | /* Discard oversize frames. */ | |
2223 | if (unlikely(pkt_len > PKT_BUF_SZ - 2)) { | |
2224 | if (netif_msg_drv(lp)) | |
2225 | printk(KERN_ERR | |
2226 | "%s: Impossible packet size %d!\n", | |
2227 | dev->name, pkt_len); | |
2228 | lp->stats.rx_errors++; | |
2229 | } else if (pkt_len < 60) { | |
2230 | if (netif_msg_rx_err(lp)) | |
2231 | printk(KERN_ERR "%s: Runt packet!\n", | |
2232 | dev->name); | |
2233 | lp->stats.rx_errors++; | |
2234 | } else { | |
2235 | int rx_in_place = 0; | |
2236 | ||
2237 | if (pkt_len > rx_copybreak) { | |
2238 | struct sk_buff *newskb; | |
2239 | ||
2240 | if ((newskb = | |
2241 | dev_alloc_skb(PKT_BUF_SZ))) { | |
2242 | skb_reserve(newskb, 2); | |
2243 | skb = lp->rx_skbuff[entry]; | |
2244 | pci_unmap_single(lp->pci_dev, | |
2245 | lp-> | |
2246 | rx_dma_addr | |
2247 | [entry], | |
2248 | PKT_BUF_SZ - 2, | |
2249 | PCI_DMA_FROMDEVICE); | |
2250 | skb_put(skb, pkt_len); | |
2251 | lp->rx_skbuff[entry] = newskb; | |
2252 | newskb->dev = dev; | |
2253 | lp->rx_dma_addr[entry] = | |
2254 | pci_map_single(lp->pci_dev, | |
2255 | newskb->data, | |
2256 | PKT_BUF_SZ - | |
2257 | 2, | |
2258 | PCI_DMA_FROMDEVICE); | |
2259 | lp->rx_ring[entry].base = | |
2260 | le32_to_cpu(lp-> | |
2261 | rx_dma_addr | |
2262 | [entry]); | |
2263 | rx_in_place = 1; | |
2264 | } else | |
2265 | skb = NULL; | |
2266 | } else { | |
2267 | skb = dev_alloc_skb(pkt_len + 2); | |
2268 | } | |
2269 | ||
2270 | if (skb == NULL) { | |
2271 | int i; | |
2272 | if (netif_msg_drv(lp)) | |
2273 | printk(KERN_ERR | |
2274 | "%s: Memory squeeze, deferring packet.\n", | |
2275 | dev->name); | |
2276 | for (i = 0; i < lp->rx_ring_size; i++) | |
2277 | if ((short) | |
2278 | le16_to_cpu(lp-> | |
2279 | rx_ring[(entry + | |
2280 | i) | |
2281 | & lp-> | |
2282 | rx_mod_mask]. | |
2283 | status) < 0) | |
2284 | break; | |
2285 | ||
2286 | if (i > lp->rx_ring_size - 2) { | |
2287 | lp->stats.rx_dropped++; | |
2288 | lp->rx_ring[entry].status |= | |
2289 | le16_to_cpu(0x8000); | |
2290 | wmb(); /* Make sure adapter sees owner change */ | |
2291 | lp->cur_rx++; | |
2292 | } | |
2293 | break; | |
2294 | } | |
2295 | skb->dev = dev; | |
2296 | if (!rx_in_place) { | |
2297 | skb_reserve(skb, 2); /* 16 byte align */ | |
2298 | skb_put(skb, pkt_len); /* Make room */ | |
2299 | pci_dma_sync_single_for_cpu(lp->pci_dev, | |
2300 | lp-> | |
2301 | rx_dma_addr | |
2302 | [entry], | |
2303 | PKT_BUF_SZ - | |
2304 | 2, | |
2305 | PCI_DMA_FROMDEVICE); | |
2306 | eth_copy_and_sum(skb, | |
2307 | (unsigned char *)(lp-> | |
2308 | rx_skbuff | |
2309 | [entry]-> | |
2310 | data), | |
2311 | pkt_len, 0); | |
2312 | pci_dma_sync_single_for_device(lp-> | |
2313 | pci_dev, | |
2314 | lp-> | |
2315 | rx_dma_addr | |
2316 | [entry], | |
2317 | PKT_BUF_SZ | |
2318 | - 2, | |
2319 | PCI_DMA_FROMDEVICE); | |
2320 | } | |
2321 | lp->stats.rx_bytes += skb->len; | |
2322 | skb->protocol = eth_type_trans(skb, dev); | |
2323 | netif_rx(skb); | |
2324 | dev->last_rx = jiffies; | |
2325 | lp->stats.rx_packets++; | |
2326 | } | |
1da177e4 | 2327 | } |
4a5e8e29 JG |
2328 | /* |
2329 | * The docs say that the buffer length isn't touched, but Andrew Boyd | |
2330 | * of QNX reports that some revs of the 79C965 clear it. | |
2331 | */ | |
2332 | lp->rx_ring[entry].buf_length = le16_to_cpu(2 - PKT_BUF_SZ); | |
2333 | wmb(); /* Make sure owner changes after all others are visible */ | |
2334 | lp->rx_ring[entry].status |= le16_to_cpu(0x8000); | |
2335 | entry = (++lp->cur_rx) & lp->rx_mod_mask; | |
2336 | if (--boguscnt <= 0) | |
2337 | break; /* don't stay in loop forever */ | |
1da177e4 | 2338 | } |
4a5e8e29 JG |
2339 | |
2340 | return 0; | |
1da177e4 LT |
2341 | } |
2342 | ||
4a5e8e29 | 2343 | static int pcnet32_close(struct net_device *dev) |
1da177e4 | 2344 | { |
4a5e8e29 JG |
2345 | unsigned long ioaddr = dev->base_addr; |
2346 | struct pcnet32_private *lp = dev->priv; | |
2347 | int i; | |
2348 | unsigned long flags; | |
1da177e4 | 2349 | |
4a5e8e29 | 2350 | del_timer_sync(&lp->watchdog_timer); |
1da177e4 | 2351 | |
4a5e8e29 | 2352 | netif_stop_queue(dev); |
1da177e4 | 2353 | |
4a5e8e29 | 2354 | spin_lock_irqsave(&lp->lock, flags); |
1da177e4 | 2355 | |
4a5e8e29 | 2356 | lp->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); |
1da177e4 | 2357 | |
4a5e8e29 JG |
2358 | if (netif_msg_ifdown(lp)) |
2359 | printk(KERN_DEBUG | |
2360 | "%s: Shutting down ethercard, status was %2.2x.\n", | |
2361 | dev->name, lp->a.read_csr(ioaddr, 0)); | |
1da177e4 | 2362 | |
4a5e8e29 JG |
2363 | /* We stop the PCNET32 here -- it occasionally polls memory if we don't. */ |
2364 | lp->a.write_csr(ioaddr, 0, 0x0004); | |
1da177e4 | 2365 | |
4a5e8e29 JG |
2366 | /* |
2367 | * Switch back to 16bit mode to avoid problems with dumb | |
2368 | * DOS packet driver after a warm reboot | |
2369 | */ | |
2370 | lp->a.write_bcr(ioaddr, 20, 4); | |
1da177e4 | 2371 | |
4a5e8e29 | 2372 | spin_unlock_irqrestore(&lp->lock, flags); |
1da177e4 | 2373 | |
4a5e8e29 | 2374 | free_irq(dev->irq, dev); |
1da177e4 | 2375 | |
4a5e8e29 | 2376 | spin_lock_irqsave(&lp->lock, flags); |
1da177e4 | 2377 | |
4a5e8e29 JG |
2378 | /* free all allocated skbuffs */ |
2379 | for (i = 0; i < lp->rx_ring_size; i++) { | |
2380 | lp->rx_ring[i].status = 0; | |
2381 | wmb(); /* Make sure adapter sees owner change */ | |
2382 | if (lp->rx_skbuff[i]) { | |
2383 | pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[i], | |
2384 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); | |
2385 | dev_kfree_skb(lp->rx_skbuff[i]); | |
2386 | } | |
2387 | lp->rx_skbuff[i] = NULL; | |
2388 | lp->rx_dma_addr[i] = 0; | |
1da177e4 | 2389 | } |
1da177e4 | 2390 | |
4a5e8e29 JG |
2391 | for (i = 0; i < lp->tx_ring_size; i++) { |
2392 | lp->tx_ring[i].status = 0; /* CPU owns buffer */ | |
2393 | wmb(); /* Make sure adapter sees owner change */ | |
2394 | if (lp->tx_skbuff[i]) { | |
2395 | pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[i], | |
2396 | lp->tx_skbuff[i]->len, | |
2397 | PCI_DMA_TODEVICE); | |
2398 | dev_kfree_skb(lp->tx_skbuff[i]); | |
2399 | } | |
2400 | lp->tx_skbuff[i] = NULL; | |
2401 | lp->tx_dma_addr[i] = 0; | |
1da177e4 | 2402 | } |
1da177e4 | 2403 | |
4a5e8e29 | 2404 | spin_unlock_irqrestore(&lp->lock, flags); |
1da177e4 | 2405 | |
4a5e8e29 | 2406 | return 0; |
1da177e4 LT |
2407 | } |
2408 | ||
4a5e8e29 | 2409 | static struct net_device_stats *pcnet32_get_stats(struct net_device *dev) |
1da177e4 | 2410 | { |
4a5e8e29 JG |
2411 | struct pcnet32_private *lp = dev->priv; |
2412 | unsigned long ioaddr = dev->base_addr; | |
2413 | u16 saved_addr; | |
2414 | unsigned long flags; | |
2415 | ||
2416 | spin_lock_irqsave(&lp->lock, flags); | |
2417 | saved_addr = lp->a.read_rap(ioaddr); | |
2418 | lp->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); | |
2419 | lp->a.write_rap(ioaddr, saved_addr); | |
2420 | spin_unlock_irqrestore(&lp->lock, flags); | |
2421 | ||
2422 | return &lp->stats; | |
1da177e4 LT |
2423 | } |
2424 | ||
2425 | /* taken from the sunlance driver, which it took from the depca driver */ | |
4a5e8e29 | 2426 | static void pcnet32_load_multicast(struct net_device *dev) |
1da177e4 | 2427 | { |
4a5e8e29 JG |
2428 | struct pcnet32_private *lp = dev->priv; |
2429 | volatile struct pcnet32_init_block *ib = &lp->init_block; | |
2430 | volatile u16 *mcast_table = (u16 *) & ib->filter; | |
2431 | struct dev_mc_list *dmi = dev->mc_list; | |
2432 | char *addrs; | |
2433 | int i; | |
2434 | u32 crc; | |
2435 | ||
2436 | /* set all multicast bits */ | |
2437 | if (dev->flags & IFF_ALLMULTI) { | |
2438 | ib->filter[0] = 0xffffffff; | |
2439 | ib->filter[1] = 0xffffffff; | |
2440 | return; | |
2441 | } | |
2442 | /* clear the multicast filter */ | |
2443 | ib->filter[0] = 0; | |
2444 | ib->filter[1] = 0; | |
2445 | ||
2446 | /* Add addresses */ | |
2447 | for (i = 0; i < dev->mc_count; i++) { | |
2448 | addrs = dmi->dmi_addr; | |
2449 | dmi = dmi->next; | |
2450 | ||
2451 | /* multicast address? */ | |
2452 | if (!(*addrs & 1)) | |
2453 | continue; | |
2454 | ||
2455 | crc = ether_crc_le(6, addrs); | |
2456 | crc = crc >> 26; | |
2457 | mcast_table[crc >> 4] = | |
2458 | le16_to_cpu(le16_to_cpu(mcast_table[crc >> 4]) | | |
2459 | (1 << (crc & 0xf))); | |
2460 | } | |
1da177e4 | 2461 | return; |
1da177e4 LT |
2462 | } |
2463 | ||
1da177e4 LT |
2464 | /* |
2465 | * Set or clear the multicast filter for this adaptor. | |
2466 | */ | |
2467 | static void pcnet32_set_multicast_list(struct net_device *dev) | |
2468 | { | |
4a5e8e29 JG |
2469 | unsigned long ioaddr = dev->base_addr, flags; |
2470 | struct pcnet32_private *lp = dev->priv; | |
2471 | ||
2472 | spin_lock_irqsave(&lp->lock, flags); | |
2473 | if (dev->flags & IFF_PROMISC) { | |
2474 | /* Log any net taps. */ | |
2475 | if (netif_msg_hw(lp)) | |
2476 | printk(KERN_INFO "%s: Promiscuous mode enabled.\n", | |
2477 | dev->name); | |
2478 | lp->init_block.mode = | |
2479 | le16_to_cpu(0x8000 | (lp->options & PCNET32_PORT_PORTSEL) << | |
2480 | 7); | |
2481 | } else { | |
2482 | lp->init_block.mode = | |
2483 | le16_to_cpu((lp->options & PCNET32_PORT_PORTSEL) << 7); | |
2484 | pcnet32_load_multicast(dev); | |
2485 | } | |
2486 | ||
2487 | lp->a.write_csr(ioaddr, 0, 0x0004); /* Temporarily stop the lance. */ | |
2488 | pcnet32_restart(dev, 0x0042); /* Resume normal operation */ | |
2489 | netif_wake_queue(dev); | |
2490 | ||
2491 | spin_unlock_irqrestore(&lp->lock, flags); | |
1da177e4 LT |
2492 | } |
2493 | ||
2494 | /* This routine assumes that the lp->lock is held */ | |
2495 | static int mdio_read(struct net_device *dev, int phy_id, int reg_num) | |
2496 | { | |
4a5e8e29 JG |
2497 | struct pcnet32_private *lp = dev->priv; |
2498 | unsigned long ioaddr = dev->base_addr; | |
2499 | u16 val_out; | |
1da177e4 | 2500 | |
4a5e8e29 JG |
2501 | if (!lp->mii) |
2502 | return 0; | |
1da177e4 | 2503 | |
4a5e8e29 JG |
2504 | lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); |
2505 | val_out = lp->a.read_bcr(ioaddr, 34); | |
1da177e4 | 2506 | |
4a5e8e29 | 2507 | return val_out; |
1da177e4 LT |
2508 | } |
2509 | ||
2510 | /* This routine assumes that the lp->lock is held */ | |
2511 | static void mdio_write(struct net_device *dev, int phy_id, int reg_num, int val) | |
2512 | { | |
4a5e8e29 JG |
2513 | struct pcnet32_private *lp = dev->priv; |
2514 | unsigned long ioaddr = dev->base_addr; | |
1da177e4 | 2515 | |
4a5e8e29 JG |
2516 | if (!lp->mii) |
2517 | return; | |
1da177e4 | 2518 | |
4a5e8e29 JG |
2519 | lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); |
2520 | lp->a.write_bcr(ioaddr, 34, val); | |
1da177e4 LT |
2521 | } |
2522 | ||
2523 | static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
2524 | { | |
4a5e8e29 JG |
2525 | struct pcnet32_private *lp = dev->priv; |
2526 | int rc; | |
2527 | unsigned long flags; | |
1da177e4 | 2528 | |
4a5e8e29 JG |
2529 | /* SIOC[GS]MIIxxx ioctls */ |
2530 | if (lp->mii) { | |
2531 | spin_lock_irqsave(&lp->lock, flags); | |
2532 | rc = generic_mii_ioctl(&lp->mii_if, if_mii(rq), cmd, NULL); | |
2533 | spin_unlock_irqrestore(&lp->lock, flags); | |
2534 | } else { | |
2535 | rc = -EOPNOTSUPP; | |
2536 | } | |
1da177e4 | 2537 | |
4a5e8e29 | 2538 | return rc; |
1da177e4 LT |
2539 | } |
2540 | ||
ac62ef04 DF |
2541 | static int pcnet32_check_otherphy(struct net_device *dev) |
2542 | { | |
4a5e8e29 JG |
2543 | struct pcnet32_private *lp = dev->priv; |
2544 | struct mii_if_info mii = lp->mii_if; | |
2545 | u16 bmcr; | |
2546 | int i; | |
ac62ef04 | 2547 | |
4a5e8e29 JG |
2548 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { |
2549 | if (i == lp->mii_if.phy_id) | |
2550 | continue; /* skip active phy */ | |
2551 | if (lp->phymask & (1 << i)) { | |
2552 | mii.phy_id = i; | |
2553 | if (mii_link_ok(&mii)) { | |
2554 | /* found PHY with active link */ | |
2555 | if (netif_msg_link(lp)) | |
2556 | printk(KERN_INFO | |
2557 | "%s: Using PHY number %d.\n", | |
2558 | dev->name, i); | |
2559 | ||
2560 | /* isolate inactive phy */ | |
2561 | bmcr = | |
2562 | mdio_read(dev, lp->mii_if.phy_id, MII_BMCR); | |
2563 | mdio_write(dev, lp->mii_if.phy_id, MII_BMCR, | |
2564 | bmcr | BMCR_ISOLATE); | |
2565 | ||
2566 | /* de-isolate new phy */ | |
2567 | bmcr = mdio_read(dev, i, MII_BMCR); | |
2568 | mdio_write(dev, i, MII_BMCR, | |
2569 | bmcr & ~BMCR_ISOLATE); | |
2570 | ||
2571 | /* set new phy address */ | |
2572 | lp->mii_if.phy_id = i; | |
2573 | return 1; | |
2574 | } | |
2575 | } | |
ac62ef04 | 2576 | } |
4a5e8e29 | 2577 | return 0; |
ac62ef04 DF |
2578 | } |
2579 | ||
2580 | /* | |
2581 | * Show the status of the media. Similar to mii_check_media however it | |
2582 | * correctly shows the link speed for all (tested) pcnet32 variants. | |
2583 | * Devices with no mii just report link state without speed. | |
2584 | * | |
2585 | * Caller is assumed to hold and release the lp->lock. | |
2586 | */ | |
2587 | ||
2588 | static void pcnet32_check_media(struct net_device *dev, int verbose) | |
2589 | { | |
4a5e8e29 JG |
2590 | struct pcnet32_private *lp = dev->priv; |
2591 | int curr_link; | |
2592 | int prev_link = netif_carrier_ok(dev) ? 1 : 0; | |
2593 | u32 bcr9; | |
2594 | ||
ac62ef04 | 2595 | if (lp->mii) { |
4a5e8e29 | 2596 | curr_link = mii_link_ok(&lp->mii_if); |
ac62ef04 | 2597 | } else { |
4a5e8e29 JG |
2598 | ulong ioaddr = dev->base_addr; /* card base I/O address */ |
2599 | curr_link = (lp->a.read_bcr(ioaddr, 4) != 0xc0); | |
2600 | } | |
2601 | if (!curr_link) { | |
2602 | if (prev_link || verbose) { | |
2603 | netif_carrier_off(dev); | |
2604 | if (netif_msg_link(lp)) | |
2605 | printk(KERN_INFO "%s: link down\n", dev->name); | |
2606 | } | |
2607 | if (lp->phycount > 1) { | |
2608 | curr_link = pcnet32_check_otherphy(dev); | |
2609 | prev_link = 0; | |
2610 | } | |
2611 | } else if (verbose || !prev_link) { | |
2612 | netif_carrier_on(dev); | |
2613 | if (lp->mii) { | |
2614 | if (netif_msg_link(lp)) { | |
2615 | struct ethtool_cmd ecmd; | |
2616 | mii_ethtool_gset(&lp->mii_if, &ecmd); | |
2617 | printk(KERN_INFO | |
2618 | "%s: link up, %sMbps, %s-duplex\n", | |
2619 | dev->name, | |
2620 | (ecmd.speed == SPEED_100) ? "100" : "10", | |
2621 | (ecmd.duplex == | |
2622 | DUPLEX_FULL) ? "full" : "half"); | |
2623 | } | |
2624 | bcr9 = lp->a.read_bcr(dev->base_addr, 9); | |
2625 | if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) { | |
2626 | if (lp->mii_if.full_duplex) | |
2627 | bcr9 |= (1 << 0); | |
2628 | else | |
2629 | bcr9 &= ~(1 << 0); | |
2630 | lp->a.write_bcr(dev->base_addr, 9, bcr9); | |
2631 | } | |
2632 | } else { | |
2633 | if (netif_msg_link(lp)) | |
2634 | printk(KERN_INFO "%s: link up\n", dev->name); | |
2635 | } | |
ac62ef04 | 2636 | } |
ac62ef04 DF |
2637 | } |
2638 | ||
2639 | /* | |
2640 | * Check for loss of link and link establishment. | |
2641 | * Can not use mii_check_media because it does nothing if mode is forced. | |
2642 | */ | |
2643 | ||
1da177e4 LT |
2644 | static void pcnet32_watchdog(struct net_device *dev) |
2645 | { | |
4a5e8e29 JG |
2646 | struct pcnet32_private *lp = dev->priv; |
2647 | unsigned long flags; | |
1da177e4 | 2648 | |
4a5e8e29 JG |
2649 | /* Print the link status if it has changed */ |
2650 | spin_lock_irqsave(&lp->lock, flags); | |
2651 | pcnet32_check_media(dev, 0); | |
2652 | spin_unlock_irqrestore(&lp->lock, flags); | |
1da177e4 | 2653 | |
4a5e8e29 | 2654 | mod_timer(&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT); |
1da177e4 LT |
2655 | } |
2656 | ||
2657 | static void __devexit pcnet32_remove_one(struct pci_dev *pdev) | |
2658 | { | |
4a5e8e29 JG |
2659 | struct net_device *dev = pci_get_drvdata(pdev); |
2660 | ||
2661 | if (dev) { | |
2662 | struct pcnet32_private *lp = dev->priv; | |
2663 | ||
2664 | unregister_netdev(dev); | |
2665 | pcnet32_free_ring(dev); | |
2666 | release_region(dev->base_addr, PCNET32_TOTAL_SIZE); | |
2667 | pci_free_consistent(lp->pci_dev, sizeof(*lp), lp, lp->dma_addr); | |
2668 | free_netdev(dev); | |
2669 | pci_disable_device(pdev); | |
2670 | pci_set_drvdata(pdev, NULL); | |
2671 | } | |
1da177e4 LT |
2672 | } |
2673 | ||
2674 | static struct pci_driver pcnet32_driver = { | |
4a5e8e29 JG |
2675 | .name = DRV_NAME, |
2676 | .probe = pcnet32_probe_pci, | |
2677 | .remove = __devexit_p(pcnet32_remove_one), | |
2678 | .id_table = pcnet32_pci_tbl, | |
1da177e4 LT |
2679 | }; |
2680 | ||
2681 | /* An additional parameter that may be passed in... */ | |
2682 | static int debug = -1; | |
2683 | static int tx_start_pt = -1; | |
2684 | static int pcnet32_have_pci; | |
2685 | ||
2686 | module_param(debug, int, 0); | |
2687 | MODULE_PARM_DESC(debug, DRV_NAME " debug level"); | |
2688 | module_param(max_interrupt_work, int, 0); | |
4a5e8e29 JG |
2689 | MODULE_PARM_DESC(max_interrupt_work, |
2690 | DRV_NAME " maximum events handled per interrupt"); | |
1da177e4 | 2691 | module_param(rx_copybreak, int, 0); |
4a5e8e29 JG |
2692 | MODULE_PARM_DESC(rx_copybreak, |
2693 | DRV_NAME " copy breakpoint for copy-only-tiny-frames"); | |
1da177e4 LT |
2694 | module_param(tx_start_pt, int, 0); |
2695 | MODULE_PARM_DESC(tx_start_pt, DRV_NAME " transmit start point (0-3)"); | |
2696 | module_param(pcnet32vlb, int, 0); | |
2697 | MODULE_PARM_DESC(pcnet32vlb, DRV_NAME " Vesa local bus (VLB) support (0/1)"); | |
2698 | module_param_array(options, int, NULL, 0); | |
2699 | MODULE_PARM_DESC(options, DRV_NAME " initial option setting(s) (0-15)"); | |
2700 | module_param_array(full_duplex, int, NULL, 0); | |
2701 | MODULE_PARM_DESC(full_duplex, DRV_NAME " full duplex setting(s) (1)"); | |
2702 | /* Module Parameter for HomePNA cards added by Patrick Simmons, 2004 */ | |
2703 | module_param_array(homepna, int, NULL, 0); | |
4a5e8e29 JG |
2704 | MODULE_PARM_DESC(homepna, |
2705 | DRV_NAME | |
2706 | " mode for 79C978 cards (1 for HomePNA, 0 for Ethernet, default Ethernet"); | |
1da177e4 LT |
2707 | |
2708 | MODULE_AUTHOR("Thomas Bogendoerfer"); | |
2709 | MODULE_DESCRIPTION("Driver for PCnet32 and PCnetPCI based ethercards"); | |
2710 | MODULE_LICENSE("GPL"); | |
2711 | ||
2712 | #define PCNET32_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) | |
2713 | ||
2714 | static int __init pcnet32_init_module(void) | |
2715 | { | |
4a5e8e29 | 2716 | printk(KERN_INFO "%s", version); |
1da177e4 | 2717 | |
4a5e8e29 | 2718 | pcnet32_debug = netif_msg_init(debug, PCNET32_MSG_DEFAULT); |
1da177e4 | 2719 | |
4a5e8e29 JG |
2720 | if ((tx_start_pt >= 0) && (tx_start_pt <= 3)) |
2721 | tx_start = tx_start_pt; | |
1da177e4 | 2722 | |
4a5e8e29 JG |
2723 | /* find the PCI devices */ |
2724 | if (!pci_module_init(&pcnet32_driver)) | |
2725 | pcnet32_have_pci = 1; | |
1da177e4 | 2726 | |
4a5e8e29 JG |
2727 | /* should we find any remaining VLbus devices ? */ |
2728 | if (pcnet32vlb) | |
dcaf9769 | 2729 | pcnet32_probe_vlbus(pcnet32_portlist); |
1da177e4 | 2730 | |
4a5e8e29 JG |
2731 | if (cards_found && (pcnet32_debug & NETIF_MSG_PROBE)) |
2732 | printk(KERN_INFO PFX "%d cards_found.\n", cards_found); | |
1da177e4 | 2733 | |
4a5e8e29 | 2734 | return (pcnet32_have_pci + cards_found) ? 0 : -ENODEV; |
1da177e4 LT |
2735 | } |
2736 | ||
2737 | static void __exit pcnet32_cleanup_module(void) | |
2738 | { | |
4a5e8e29 JG |
2739 | struct net_device *next_dev; |
2740 | ||
2741 | while (pcnet32_dev) { | |
2742 | struct pcnet32_private *lp = pcnet32_dev->priv; | |
2743 | next_dev = lp->next; | |
2744 | unregister_netdev(pcnet32_dev); | |
2745 | pcnet32_free_ring(pcnet32_dev); | |
2746 | release_region(pcnet32_dev->base_addr, PCNET32_TOTAL_SIZE); | |
2747 | pci_free_consistent(lp->pci_dev, sizeof(*lp), lp, lp->dma_addr); | |
2748 | free_netdev(pcnet32_dev); | |
2749 | pcnet32_dev = next_dev; | |
2750 | } | |
1da177e4 | 2751 | |
4a5e8e29 JG |
2752 | if (pcnet32_have_pci) |
2753 | pci_unregister_driver(&pcnet32_driver); | |
1da177e4 LT |
2754 | } |
2755 | ||
2756 | module_init(pcnet32_init_module); | |
2757 | module_exit(pcnet32_cleanup_module); | |
2758 | ||
2759 | /* | |
2760 | * Local variables: | |
2761 | * c-indent-level: 4 | |
2762 | * tab-width: 8 | |
2763 | * End: | |
2764 | */ |